I love this game but....

Ive had some major problems even opening the app. It scares me cuz sometimes I think that my world might disappear! And when it loads to the main page it says Global Crash Detected and then it freezes. I never had any problems before the recent update.... now my app is acting up. It would be great if you could fix it!! Thanks a ton!!

Kittycats galore about Minecraft: Pocket Edition, v1.1.4