When I close the app and comeback, it just says I have 100 hearts. And everything is locked and I can't do anything anymore
Looks like your games data got corrupted, the way to fix on phone is to go to settings > applications and delete all data, did you play from an earlier version? Because that was supposed to be fixed in the latest, I will investigate either way and next version will have a reset button so you can at least avoid getting softlocked, sorry about that