Game crashes straight away when I enter survival mode and on creative mode the game crashes when I go to get a new block off the menu

It's all in the summary. FIX THIS I don't know if it's my iPad but you have totally crashed the whole thing! I can no longer play any other games as the now crash me out so I am getting a new iPad! I want my £4.99 back now as that's how much I paid for it!