If click on the app, and it shows me the white loading screen. Then in takes me to Minecraft's home screen, but after only about one second it crashes. I have uninstalled the game many times, and it works after that but if I make a world and play in it for a while, then close the app and open it after around a half an hour, then crashing returns. I really do not want to have to delete my worlds constantly just to play Minecraft. How do I fix this?