Everything works but QUEST

Hi,
I've been playing since november and i run the game on the iphone 4 with the previous ios. The game was working fine until 2 weeks ago I hit the quest button and the game crashed. Ever since then i haven't been able to quest, but I am still able to do everything else. Can somebody pleased help? I'll upgrade my ios if I have to, but i prefer not and I don't understand why only quest doesn't work.

It's a bug they have at the moment.... you're not the only one with that problem as far as I know.... They should be fixing it soon I hope. Just if you haven't connected to facebook through your account make sure not to do anything strange because you might lose your progress so far.