Go to mobile Settings and see if the following settings are available:
-
Battery > Battery Optimization (turn off battery optimization) as well as Battery saver etc.
-
You need to disable Smart Power Save: Power manager > Power management for apps > look for Safe Lagoon and turn all options OFF (Disallow auto-start, Allow screen-lock cleaning, Scheduled background wakeup, Allow deep sleep)
-
Power Manager > tap the 3-dot menu in the upper right > select App protection list > tap the 3-dot menu in the upper right again > select Set all to off (or alternatively, just Safe Lagoon)
-
Tap the Overview button to open a list of recently used apps > find Safe Lagoon > press and swipe down > tap the "lock" button