The app keeps crashing

Since yesterday my app keeps crashing. I thought my file got corrupted for one world but it's on all. It takes a solid 2 minutes for a world to load and after 20 to 30 seconds the whole app crashes completely. It isn't any background apps causing issue, because I restarted my phone, closed all apps, force stopped background apps, everything. I can't delete and redownload the app because all of my worlds are on application storage and there's no option of downloading the worlds. Please help.