Quoted from Fytr:Release Notes:
- Added Maintenance Reboot support. The game will automatically reboot if it has
been on for more than 48 hours and has been idle for at least 15
minutes. A 15 second notification display will be presented and can be
postponed by pressing both flipper buttons, inserting a coin/bill, or starting a game.
Nice to see this workaround for the 24/7 locations.
Hopefully they´re still working on a real fix for this freeze/lockup issues.