Fire Tablet - Fully Kiosk loses connection to HA every 3 days?

Hi HA family,

I have my Fire Tablet 10 using Fully Kiosk to display my dashboard along with a TP Link smart plug to auto turn on/off to maintain battery between 20%-80%. Every 3 days (religiously) I come home to a dead tablet because HA stopped seeing my tablet, which causes my automation with plug to not run leading to battery depleting to 0%.

Currently to prevent this, once a day or every other day, I exit Full Kiosk, fire up the HA app then exit back to Fully Kiosk to reset this “3 day” timer.

Thoughts on what’s going on or how to fix? Thanks in advance!