Here's how to reset apps if your moto g power crashes, resets or freezes.
Do any of the following:
Reset Individual App
Resetting an app doesn't remove saved items on the device (e.g., texts, pictures, voicemails, etc.); however, saved passwords for Wi-Fi, settings, backgrounds, etc. within the app itself may be reset.
Navigate: .
If necessary, tap the
Dropdown menu

then select
See all apps
.
Tap the appropriate app.
If system apps aren't visible, tap the
Menu icon

then tap
Show system
.
Tap
Force stop
then tap
OK
.
Tap
Clear storage
.
This option may not be available for some apps.
Resetting an app or clearing data storage may delete saved info within the app (e.g., calendar events may be lost).
Reset All App Preferences
This option resets app preferences for disabled apps, notification restrictions for apps, default apps, background data restrictions for apps, and permission restrictions.
Navigate: .
Tap
Reset app preferences
.