Branium Sudoku crashing

I dont know what has happened in the last few days but something with this game, or something Game Center has done by trying to force me to log in before I play, which is a new thing for this game for me, is causing it to freeze immediately upon getting to the menu screen. I play on my iPad. Ive reinstalled it, restarted my iPad, but nothing works. Please fix this. This is my favorite Sudoku game.

LimeInCCNut about ⋆Sudoku+