I’m inconsolable at the moment, as it seems most of the third party apps on my iPhone 4 have stopped working or, at least, they’re not opening and I don’t know why. I mean come on …

I’m especially bummed because I can’t access my faithful app, Pocket Money, which I use to keep track of day to day expenditure. It’s so frustrating. It worked perfectly last weekend and now?

Any suggestions anyone?