[Sony] Take the following actions when your app is not working

[Sony] 

Take the following actions when your app is not working

Steps: 
1.Settings
2.Power management
3.STAMINA mode
4.Select application to whitelist
4.Select "Battery full charge notification" application to whitelist

■ Never use Stamina mode if you want your phone to do something useful when you are not actively using it.

Try to make your app not battery optimized in Phone settings > Battery > Three dots in the top right corner > Battery optimisation > Apps > your app.