GameCenter - The only app with a problem

[Qiqq3r]

Hi everyone.

After searching a while online for guides on how to help me with this I've ended up here.
The reason is mostly because the problem seems rare, a lot of people have problems with all of their apps closing and working incorrectly. While as I only have the problem with one app and the other ones are running perfectly.

The app I am having a problem with is the NHL GameCenter app, the app is downloaded free from the Appstore and no matter how many times I do a hard restart or redownload the app, it still won't open.
I get the splash screen, but then it all just goes black and the whole thing crashes.
I've also tried installing it threw iTunes, all without succes.

So now I'm coming to you guys to see if you can help me out. I am a huge NHL fan and I try to follow every game, and the NHL app is in my opinion better than the ESPN app, so hopefully I'll be able to get it working without having to restore my iPhone.

(I'm on an iPhone 4, 4.2.1, Jailbroken with Greenpois0n (although the app didn't even work before the phone was jailbroken))

Thanks in pre
-D

EDIT: Managed to solve the problem after a while of going through files in the phone (SSH), don't really know exactly what fixed it.