How to unfreeze Sims Freeplay?

I was on the Sims Freeplay app on my IPhone and I tried to 'grow' the simoleons sprout thing (which I had done a few times before with no problems at all) and this time, once it showed how many simoleons I was going to get, little circles appeared around each picture, as if it was still loading/'deciding' how many simoleons I would get (even though as I said, it had already finished doing that) and it's been doing the loading thing for the past 6 hours. There's nothing on the screen that'll let me exit out of that bit and get back to the rest of the app:/ Anyone know how to fix this?

Double click the home button and swipe up on the sims freeplay screen (ios 7) or press the x in the corner off the square screen icon (older ios versions) and that closes the app from the ram and re-open it. If you need to uninstall try to back up the game save to the cloud in-game

My problem is gta tone of my sins if frozen and I can't get them to do anything, I tried uninstall install but still won't work