Dragonvale wont Load

I have a 4.2.1 Ipod. Every time i try and play dragonvale (on my game center) it won't load. All other games load and run just fine. Dragonvale had been loading just fine for the past 2/3 weeks but now when i try and get on it, it kicks me out. I have tried uninstalling it and reinstalling it also rebooted.

I also forgot to tell you. When I log into my cousins gamecenter account and play his dragonvale on the same Ipod it works just fine. It obviously has something to do with my dragonvale game specifically. Help..=)