Version 0.11.1 is not working on iPhone 4 with iOS 7.1.2

If I try to load the game there is just the Mojang logo showing for 10-15 seconds and then the game ist shutting down and during these 10-15 seconds everything is freezing.
Nothing works neither the double click on the Home-button or touching the screen.

And by the way version 0.11.1 exists but not choseable in the menu...