Touch See details and look for the Moto Camera 2 app:
Issues such as apps crashing, unexpected reboots, or fast battery drain could be caused by an app you intalled. Use safe mode to start your phone with only the original software and apps. If the issues go away in safe mode, the problem is probably from an app you downloaded.
To restart in safe mode:
When it restarts, you'll see Safe mode across the bottom of the home screen, and all widgets and third-party apps will be disabled.
If the problem goes away:
Press & hold the Power button, then touch Restart
.
Or, hold the Power button for about 30 seconds, or until your phone restarts.
Do one of the following: