Fixes for Apps Keep Crashing on Oppo Find X7 Ultra | Dr.fone

Fixes for Apps Keep Crashing on Oppo Find X7 Ultra | Dr.fone

Ariadne Lv13

Fixes for Apps Keep Crashing on Oppo Find X7 Ultra

The rapid evolution of technology has transformed our smartphones into powerful devices. Presently, with just a few taps, they possess the ability to accomplish a diverse array of tasks. It has been possible due to the extensive availability of mobile applications. However, it can be incredibly frustrating when your favorite apps keep crashing repeatedly.

You’re not alone if you’re an Android user who encounters app crashes. This article will explore ten practical ways to fix apps that keep crashing on Android devices. We will also discuss the causes behind app crashes and how to prevent them.

Part 1: What Are the Causes Behind Apps Keep Crashing on Android?

There are many reasons for the app crashing on Android devices. These reasons range from insufficient storage space to bugs and glitches in the apps. Finding out the root cause of an app crashing is important so that you can find the appropriate solution. Discussed below are some of the reasons why your Android apps keep crashing:

Insufficient Memory

When a device is low on memory, it may struggle to run multiple apps simultaneously. Each app requires memory to store its data and execute its processes. If the available memory is limited, it can cause apps to crash. That happens because they don’t have enough resources to operate properly.

Software Compatibility

Android devices come in various models and run different operating system versions. That’s why it is essential to use apps compatible with your device. Since there are a lot of Android variants, it is hard to optimize apps for all devices. An app not optimized for an Android version or device leads to crashes or malfunctions.

Outdated Apps

Apps are regularly updated to introduce new features, fix bugs, and enhance performance. Using an outdated version of an app may cause instability or compatibility problems. Since the app is not optimized for the current version of Android, it can keep crashing.

Network Problems

Some apps rely heavily on network connectivity to function properly. They need a stable and strong internet connection to perform all the functions. These apps can crash if there are network connectivity issues, such as a weak Wi-Fi or network outage. Unstable connections can disrupt data transmission, making the app’s function challenging.

App Bugs

Despite rigorous testing, apps can still have bugs or coding errors that lead to crashes. Bugs in apps can occur due to various reasons. It mostly relates to incorrect implementation of features or unexpected user interactions. App developers work to identify and fix these bugs, often releasing updates.

Part 2: How to Fix the Apps Keep Crashing on Android?

Once you discover why your Android apps keep crashing, fixing them becomes a lot easier. However, there is no need to worry even if you cannot locate the problem source. Below we have listed 10 general and specialized solutions to fix app crashing:

Fix 1: Check the Internet Connection

As mentioned before, some apps rely on the internet to function. If you don’t have an active internet connection, they will not work. To avoid the app crashing, you need to ensure that the internet connection on your device is working. If you use Wi-Fi, check the router and turn Wi-Fi off and on again. In the case of mobile data, try enabling Airplane mode and then disabling it.

check the internet connection

Fix 2: Force Stop the Apps Keep Crashing

If your apps keep crashing, you should try force-closing the targeted app and re-opening it. Doing this will flush out minor bugs and glitches from the app. These temporary bugs and glitches can occur due to various reasons and hamper the app’s working. Use the following steps to force stop the app that keeps crashing and re-open it:

  • Step 1: On your Oppo Find X7 Ultra, move the app icon and press it to select “App Info.” On the App Info screen, tap the “Force Stop” button to force close the app. The button can be either on the down left or down right corner.

tap on force stop

  • Step 2: After force closing the app, relaunch it and see if the app crashing issue is resolved.

Fix 3: Restart your Android Device

In case restarting the app hasn’t worked, you should try restarting your Oppo Find X7 Ultra. Rebooting your device reset all the processes and apps in the Oppo Find X7 Ultra device. It helps remove conflicts between different apps, which can be the cause of your apps keep crashing on Android. To reboot your Oppo Find X7 Ultra, adhere to the following guidelines:

  • Step: Press and hold the “Power” key until you see the power menu on the screen. Here, tap the “Restart/Reboot” button to restart your Oppo Find X7 Ultra.

proceed with the restart option

Fix 4: Update the Android OS

Not updating your Android OS for a long while can cause many performance issues in your device. One of these issues is the incompatibility with the latest apps. That’s why make sure that your Oppo Find X7 Ultra is running the latest available version of the operating system. You can check and update the Android OS of your device using these steps:

  • Step 1: Launch the Settings app on your Oppo Find X7 Ultra and scroll down to select “Software Update.” On the next screen, tap “Download and Install” to look for new updates.

tap on download and install

  • Step 2: During the update process, ensure you have a stable internet connection. Moreover, your device should be fully charged to avoid any complications.

Fix 5: Clear the App Cache

Have you tried clearing the cache of the app that keeps crashing? The app cache consists of temporary files and data that are stored to enhance app performance. However, if the app cache becomes corrupted, it can cause crashes. In such a situation, clearing the app cache can help resolve the app crashing issue. To clear the app cache on your Oppo Find X7 Ultra, follow these steps:

  • Step 1: Navigate to your targeted app icon and long-press it. Now, tap “App Info” from the pop-up menu to access app information.

choose app info option

  • Step 2: Following this, press “Storage,” and on the following screen, hit “Clear Cache.” It will clean the cache for the targeted app.

tap on clear cache button

Fix 6: Reinstall the Buggy App

Bugs in the app can prove a nightmare and hard to remove from the app. If your apps keep crashing due to bugs, it is best to uninstall and then reinstall the app. It will help you eliminate any corrupted files or settings that might be causing the crashes. Given below are the steps needed to uninstall and reinstall the apps on Android device:

  • Step 1: Go to the problematic app on your device and press the app icon for a while. Select “Uninstall” and remove the app by pressing “OK.”

choose the uninstall option

  • Step 2: After removing the app, go to Google Play Store and find the targeted app. Here, tap “Install” to reinstall the app on your device.

press the install button

Fix 7: Check the App Permissions

Sometimes, app crashes can occur due to improper or conflicting permissions. Whenever you install an app on your device, it needs related permission to function. If you have not granted the required permissions, the apps will not function, leading to apps keep crashing on Android. You can check the app permissions using the following procedure:

  • Step 1: You will need to launch Settings on your Oppo Find X7 Ultra and tap “Apps.” Here find and select the targeted app to open App Info.

tap on the apps option

  • Step 2: On the App Info screen, press “Permissions” to access all permission settings. Here, ensure that your app has the required permissions.

access the app permissions

Fix 8: Check and Clear the Phone Storage

Insufficient storage space on your device can also lead to app crashes. Check the available storage space on your Oppo Find X7 Ultra and ensure it has enough free space. If the storage is full, consider deleting unnecessary files or apps to create more space. Explained below is the process to check and free up storage on Android devices:

  • Step 1: Open Settings on your Oppo Find X7 Ultra and scroll down to find and select “Battery and Device Care.” Here, tap “Storage” to view the Oppo Find X7 Ultra device storage.

choose the storage option

  • Step 2: Here, you will see detailed information about everything stored on your device. If the storage space is full, remove the unnecessary data.

check the android storage

Fix 9: Reboot Into Safe Mode

It can be hard to find the app crashing root cause if it happens due to conflicts between different apps. In such scenarios, the best way to find the problematic apps is to use Safe Mode on your device. Safe Mode disables all third-party apps, allowing you to determine if the crashes are caused by a specific app. Follow the process given below to reboot your device into Safe Mode:

  • Step 1: Press and hold the “Volume Down” and “Power” buttons together for 3 seconds to access the power menu. Here, long-press the “Power Off” option.

hold the power off option

  • Step 2: Press the “Power Off” button until “Restart in Safe Mode” appears on the screen. Now reboot the Oppo Find X7 Ultra device into Safe Mode. To exit Safe Mode, you will need to restart the phone.

enable the safe mode

Fix 10: 100% Working Solution to Fix the Android Apps Keep Crashing – Wondershare Dr.Fone

Trying to fix an app crashing with multiple methods can be a tiring and frustrating experience. That’s why the best option is always to find and use a specialized Android system repair tool. The best Android repair tool currently available is Wondershare Dr.Fone. It is a comprehensive system repairing tool that can fix almost all system issues in Android devices.

Using Wondershare Dr.Fone, you can fix issues like apps crashing, black screen of death, Play Store not working, and many more. Furthermore, you do not need any technical skills to use Wondershare Dr.Fone to repair your Android system issues.

Main Features of Wondershare Dr.Fone

  • Wondershare Dr.Fone is a specialized tool for fixing problems with Oppo Find X7 Ultra devices, including the latest Oppo Find X7 Ultra phones.
  • It supports the Android system repair feature for over 1000 Android phones across the spectrum.
  • With this tool, you can also fix bricked Android devices with ease.

Step to Fix the Android Apps Keep Crashing via Wondershare Dr.Fone

The process of fixing apps that keeps crashing on Android devices is straightforward when using Wondershare Dr.Fone. Here are the simple steps you need to follow to fix the app crashing:

  • Step 1: Access System Repair from Toolbox

Open Wondershare Dr.Fone on your system after installation and select “System Repair” from the “Toolbox.” Now connect your Oppo Find X7 Ultra using a USB cable and select “Android” in Wondershare Dr.Fone.

choose the system repair tool

  • Step 2: Provide Your Android Device Information

Click “Start” to initiate the repair process and provide your device information. You will need to provide device details like Brand, Name, Model, Country, and Carrier. Now, check the “I agree with the warning, and I am ready to proceed” box and tap “Next.”

press the start button

  • Step 3: Repair the Apps Keeps Crashing on Android

Follow the on-screen instruction to activate Download Mode on your device. Wondershare Dr.Fone will download the related firmware once you have enabled Download Mode. Afterward, click “Fix Now” and confirm your action by inserting the “000000” code. Now, wait for the repair process to finish.

tap on the fix now button

safe Downloadsafe & secure

Conclusion

To sum up, if your apps keep crashing on Android, you can resolve it in many ways. Using the fixes given in this article, you can improve apps’ performance and reduce crashes. However, if you’re looking for a reliable and convenient solution, we highly recommend Wondershare Dr.Fone.

With its clean interface and powerful features, Wondershare Dr.Fone stands out as the best choice to fix app crashes. It provides a comprehensive toolkit to diagnose and resolve various software issues.

Android Safe Mode - How to Turn off Safe Mode on Oppo Find X7 Ultra?

Safe mode on Android is very useful to get rid of dangerous apps and malware. This allows the user to perform a uninstall of the crashed or malicious apps by putting safe mode on Android. Now the question is how to remove safe mode? In this article, we have discussed in detail how to get out of safe mode and also discussed some frequently asked questions. Keep reading this article.

Part 1: How to turn off safe mode on Android?

This is very important to turn off the safe mode after you put the safe mode on Android. Your mobile performance is limited in this mode. So you have to turn off safe mode. For doing this, there are some methods. Try to apply them one by one. If you succeed, stop there. Else go to the next method.

Method 1: Restarting the Oppo Find X7 Ultra device

This is the easiest method to turn off the safe mode in Android. To use this method, follow the steps below.

Step 1 – Tap and hold the power button of your Oppo Find X7 Ultra.

Step 2 – You could find the option “Restart”. Tap on it. (If you have only one option, move to the step no 2)

Step 3 – Now, your phone will boot up in some time and you can see the Oppo Find X7 Ultra device is no more on safe mode.

the Oppo Find X7 Ultra device

This method, if goes well, will turn off safe mode in Android from your device. IF not, move to the next method instead.

Method 2: Do a soft reset:

The soft reset is very easy to perform. It won’t delete any of your personal files etc. Besides, it clears all the temp files and unnecessary data and recent apps so that you get a healthy device. This method is very good for turning off Safe mode on Android.

Step 1 – Tap and hold the power button.

Step 2 – Now, select “Power off” from the given option. This will make your device off.

Step 3 – Wait a few seconds and then turn it on again.

This time you can see your phone is no more in safe mode. Also, your junk files have been also removed. If you still find the Oppo Find X7 Ultra device is the safe mode, follow the next method.

Method 3: Break all power

This method is sometimes very helpful to turn off safe mode on android by disconnecting all the power as well as resetting the SIM card.

Step 1 – Take the back cover off from the Oppo Find X7 Ultra device and remove the battery. (Not all devices will give you this facility)

Step 2 – Take out the SIM card.

Step 3 – Reinsert the SIM card and insert the battery again.

Step 4 – Turn the Oppo Find X7 Ultra device on by tapping and holding the power button.

Now, you can see your device is out of safe mode. If you still find your device in Safe mode, see the next method.

Method 4: Wipe the cache of the Oppo Find X7 Ultra device.

The cache of the Oppo Find X7 Ultra device sometimes creates an obstacle in overcoming the safe mode on Android. To solve this issue, follow the steps below.

Step 1 – Turn on your device in safe mode. It can generally be done by tapping the home, power, and volume up button on Android device. If this combination is not working for you, search the internet with your device model number.

tap home, power and volume up

Step 2 – Now you can find the recovery mode screen. Navigate to the “Wipe cache” option with the volume up and down button and select the option by tapping the power button.

Navigate to “Wipe cache”

Step 3 – Now follow on-screen instruction and your device will be rebooted.

After successful completion of this method, your device should no longer be in safe mode. If the problem still persists, the only solution is to do a factory reset. This will erase all the data from your device. So take backup of your internal storage.

Method 5: Factory data reset

To factory data reset, you have to follow the below steps.

Step 1 – Enter in the recovery mode by following the steps mentioned earlier.

Step 2 – Now select “Factory data reset” from the given options.

select “Factory data reset”

Step 3 – Now, follow the on-screen instructions and your device will be factory reset.

After this method, you can successfully get rid of the safe mode on Android. Restore your data from the backup you created.

Watch the video below to turn off safe mode on your phone:

Part 2: How to put the phone in safe mode?

If some apps or programs create a problem on your device, the solution is safe mode. Safe mode allows you to uninstall the app or the program out of your device safely. So, safe mode on Android is quite useful sometimes. Let’s have a look at how to turn on safe mode in Android.

Before this, remember to take a backup of your Oppo Find X7 Ultra. We recommend you to use the Dr.Fone - Phone Backup (Android). This tool is the best in its class to provide users with a very easy-to-use user interface yet powerful solution.

Dr.Fone - Phone Backup (Android)_

Flexibly Backup and Restore Android Data

  • Selectively backup Android data to the computer with one click.
  • Preview and restore the backup to any Android devices.
  • Supports 8000+ Android devices.
  • There is no data lost during backup, export, or restore.

Always remember to use this tool before you enter in the safe mode as you never know what will happen next and you might end up with factory resetting. This, as the result, will erase all your valuable data. So always perform backup data before you proceed.

To enter the safe mode, follow the instructions below.

Step  1 – First of all, long press the power button and let the Power options appear.

Power options

Step 2 – Now, long press on the “Power off” option. This will instantly ask you if you want to reboot into safe mode. Select the option and your device will reboot in safe mode.

‘Power off”

If you are using Android version 4.2 or earlier, turn off the Oppo Find X7 Ultra device and turn it on the back by tapping the power button. When the logo appears, tap and hold the volume down button. This will allow the Oppo Find X7 Ultra device to boot in safe mode.

Follow these steps carefully and now you can see a “Safe Mode” written at the corner of your device. This will confirm that you have successfully entered in Safe mode on Android.

Part 3: Safe mode on Android FAQs

In this section, we’ll discuss some frequently asked questions about the safe mode. Some users have many questions regarding the safe mode. Here we’ll try to cover some of them.

1. Why is My Oppo Find X7 Ultra on safe mode?

This is a very common question around the world. For many Android device users, it’s quite common to see your phone in safe mode suddenly. Android is a secure platform and if your device sees any threat from your recently installed apps or any programs that want to harm your device; it would go into safe mode automatically. Sometimes, you might accidentally perform the steps discussed in part 2 and boot your device in safe mode.

2. Safe mode won’t turn off on My Oppo Find X7 Ultra

For the solution to remove safe mode from your device you must follow the step-by-step methods as mentioned in part 1. This will surely take your device out of the safe mode.

The safe mode is a very useful program for any Android device. But it limits the programs of Android and you must remove safe mode after uninstalling the harmful app. This article showed you how to turn off safe mode easily.

Try It Free Try It Free

[Solved] Warning: Camera Failed on Oppo Find X7 Ultra

In this article, you will learn why camera fails on Oppo Find X7 Ultra devices, how to make camera work again, as well as a system repair tool to fix this issue in few clicks.

Oppo Find X7 Ultra devices are one of the best Android devices available in the market and their users are always satisfied with their features. However, it is a recent observation that many Oppo Find X7 Ultra users complain about Oppo Find X7 Ultra camera failed error while using the camera App on the Oppo Find X7 Ultra device. It is a strange error and pops up suddenly with only one option to tap on, i.e., “OK”

The error message reads as follows: “Warning: Camera Failed”.

Once you click on “OK” the app shuts down abruptly and your Oppo Find X7 Ultra camera is failed. We understand this is not a very pleasing situation, thus, here are ways to tackle the camera failed Oppo Find X7 Ultra issue. Let us now move ahead and find out why exactly you experience Warning: Camera Failed error and how to fix it.

Part 1: Why Oppo Find X7 Ultra phone has Warning: Camera Failed error?

We are all aware that no device runs smoothly, without any glitches. We also know that there is a cause behind every problem. Listed below are a few reasons behind camera failed error, especially on Oppo Find X7 Ultra devices:

camera failed

  1. If you have recently updated your OS version, there are chances that certain bugs are preventing the camera App from functioning normally. Also, if the update is interrupted and not downloaded completely, certain apps may suffer.
  2. There are chances of your internal storage being cluttered with unwanted Apps and files leaving no space for the camera App to save its data and work smoothly.
  3. If you haven’t cleared camera Cache and Data, the chances of the App to get clogged up increase tremendously which disrupt its working.
  4. Warning: Camera Failed error can also be a direct outcome of a change in the system settings or the Oppo Find X7 Ultra device’s internal settings.
  5. Finally, if you tamper a lot with the camera settings and do not update the App whenever it is available, Oppo Find X7 Ultra Camera App will not be efficient.

There might be much more reasons for the camera failed error, but these are the most obvious ones. Now let us now move on to troubleshooting the problem.

Part 2: How to fix Oppo Find X7 Ultra Camera Failed in One Click?

If you are experiencing some kind of issues in your Oppo Find X7 Ultras such as Oppo Find X7 Ultra camera failed, the Oppo Find X7 Ultra device stopped working, black screen, play store not working, etc. There is a special software is designed for such kind of issues in Android devices, i.e. dr. fone. The tool enables the users to fix various kinds of issues in the Oppo Find X7 Ultra devices and perform a complete system repair so the Oppo Find X7 Ultra device starts working normally.

Dr.Fone - System Repair (Android)

One-click solution to fix camera failed on Oppo Find X7 Ultra devices

  • The tool has a one-click operation which makes it super easy to use.
  • You don’t need any technical skills expertise to operate the software.
  • The software supports all the Oppo Find X7 Ultra devices including the latest and older ones.
  • The software can fix the “warning camera failed”, the app is crashing, failed update, etc.

4,616,396 people have downloaded it

Note: You have to remember that the system repair may erase all the Oppo Find X7 Ultra device data. So, create a backup of your Oppo Find X7 Ultra data first and then try fixing the Oppo Find X7 Ultra phone.

Follow the steps given below and fix the camera failed error:

Step 1. Download the software on your computer and launch it. Connect your device and select the System Repair option from the main interface. In the next screen, select Android Repair module.

fix samsung camera failed by repairing samsung system

Step 2. You will have to provide the Oppo Find X7 Ultra device details accurately to ensure that the software provides a precise firmware package to be downloaded. Enter brand, name, model, country, and carrier of your device and agree to the terms and condition.

select the details of samsung device

Step 3. Now put your device in the download mode. The software will provide you with a guide to put the phone in download mode to begin the downloading process.

fix samsung camera failed in download mode

Step 4. As soon as the firmware is downloaded, the software will automatically initiate the repair process. You will be able to see the ongoing repair.

fixing samsung camera failed

When the software is done repairing the system, you will be notified. Thus, the Camera failed Oppo Find X7 Ultra error in your phone will be fixed.

Part 3: How to fix Camera Failed error by clearing camera data?

Has anyone ever informed you that it is absolutely necessary to keep clearing camera data every once in a while? Yes, since it deletes all unnecessary data stored in respect of the App and no, it does not mean that all your photos and videos will get deleted. Just follow the steps given below to clear camera data:

1. First, visit “Settings’” on your Oppo Find X7 Ultra device and select “Apps” or Application Manager”.

application manager

2. Now a list of all Apps will appear before you. Keep scrolling down until your find “Camera”.

camera app

Tap on “Camera” to open the “Camera Info” screen and once you are there, hit “Clear Data” option as shown below.

clear data

That’s all, now return to the Home Screen and access the camera again. Hopefully, it will work now.

Part 4: How to fix Camera Failed error by removing third-party Apps?

Another tip to fix Oppo Find X7 Ultra camera failed error is by deleting a few unwanted third-party Apps (recently installed) to free some space in the Oppo Find X7 Ultra device’s internal storage. It is essential to create and keep storage space for the camera App to function smoothly and allow it to store its data as well. Also, if this issue only happens recently, it might be some newly installed Apps causing some glitches with the camera.

Simply, follow the instructions given below to remove Apps from Oppo Find X7 Ultra Devices:

1. Click on the “Settings” icon on the Home Screen and from the options before you, select “Apps”/ “Application Manager”.

2. You will see that a list of downloaded and built-in Apps will open up before you as follows.

installed apps

3. Now, once you select the App you want to uninstall, the App Info screen will appear. Tap on “Uninstall” option and then tap on “Uninstall” again on the pop-up message.

uninstall app

The App will be removed immediately and its icon will disappear from the Home Screen and you will notice an increase in the storage capacity of your device.

Part 5: How to fix Camera Failed error by wiping Cache Partition?

This method might seem tedious and time-consuming and you may also lose your data and essential settings. However, wiping the Cache Partition only cleans your device system internally and gets rid off any unwanted and trouble making elements causing Warning: Camera Failed error. Follow the step-by-step guide given below to clean Cache Partition smoothly:

1. Firstly, switch off the Oppo Find X7 Ultra device by pressing the power button and tapping on “Power Off” as shown in the screenshot below. Then wait for the lit screen to turn off completely before proceeding further.

power off device

2. Now, press and hold the power on/off, home and volume up button simultaneously. Your device will now vibrate. This a signal to let go of the power button (only).

boot in recovery mode

3. Once the Recovery Screen appears, leave all buttons and use the volume down key till you reach “Wipe Cache Partition”.

wipe cache partition

4. Now, to select the option to use the power on/off button and wait for the process to get over. Once this done, tap on “Reboot system now” and see that your device restarts normally.

reboot system now

You may try to use the camera app once the process completes.

Part 6: How to fix Camera Failed error by Reset Settings?

Resetting the camera settings solves the problem 9 out of 10 times and thus is worth a try.

1. To reset, first, launch the Camera App by tapping on its icon.

tap on camera

2. Then go to Camera “Settings” by tapping on the circular gear like icon.

camera settings

3. Now look for “Reset Settings” options and click on it.

reset settings

Once done, go back to the Home Screen and start the camera App again to use it.

Part 7: How to fix Camera Failed error by Factory Reset?

Lastly, if the above-mentioned techniques do not help you in fixing the camera failed error, you can consider performing a Factory Reset. Note: This method will delete all your saved data so it is advised to backup before you start the process.

Here are the steps to factory reset your device to fix “Warning: Camera Failed” Error:

1. Start by visiting “Settings” on your Oppo Find X7 Ultra device on which the camera has failed.

phone settings

2. Now from the list of options before you, select “Backup and reset” and move ahead.

backup and reset

3. Now you must first select “Factory data reset” and then tap on “Reset Device” as shown in the screenshot below.

factory data reset reset device

4. Finally, you have to click on “Erase Everything” and wait for the Oppo Find X7 Ultra device to reboot itself.

erase everything

Note: You will have to set up your Oppo Find X7 Ultra device from scratch once it is reset, however, that is a small price to pay to fix your Camera App.

Warning: Camera Failed error is not a rare phenomenon and many users experience it on daily basis. So, there is no need to panic, All you need to do is carefully follow the instructions given above and repair your Camera App yourself. You do not need to seek any technical assistance for the same as the camera failed issue is not difficult to deal with. So go ahead and try these tricks to enjoy using the Camera App on your Oppo Find X7 Ultra devices.


  • Title: Fixes for Apps Keep Crashing on Oppo Find X7 Ultra | Dr.fone
  • Author: Ariadne
  • Created at : 2024-03-20 16:32:29
  • Updated at : 2024-03-21 19:53:58
  • Link: https://howto.techidaily.com/fixes-for-apps-keep-crashing-on-oppo-find-x7-ultra-drfone-by-drfone-fix-android-problems-fix-android-problems/
  • License: This work is licensed under CC BY-NC-SA 4.0.