World loads, then quits

I play Minecraft Pocket Edition on a iPad Air 2 and recently, in v1.6.0, (as you can see, the above information is incorrect) I have not been able to play at all. I can load up the title screen where you click 'play' and the screen where you choose which world to play in without any troubles. When I click into a world, it loads, but as soon as I try to move, Minecraft glitches out of the game and back to the folder where the app is. The photo is where it goes back to.