Big Problem

Hi i have a big problem with my manager and i don't know what to do.So yesterday when a load my save,there was so many bugs that i can't play the game.First the squads are deleted,second when i click tactics the game closed and throw me out.Similarly i can't exit of the game like normal way,i have to click ctrl + alt + delete to quit (the only way).I uninstal the game and instal it but the problem is here again.But when i preinstal i didn't delete the sports interactive folder,because i want to keep my save.Any suggestions for this??? :S:S:S