One of my app stops running unexpectedly. What can I do?

Please try the below:

1. Go to Settings > Apps > See all apps > Find the app > Storage & cache > Clear storage and Clear cache
2. Swipe up on the home page to enter the recent app page to clear all applications and then try again.
3. Uninstall and reinstall the app.
4. Back up your data and restore the phone to factory settings.

If the issue persists, contact our Customer Support for further assistance.