Forza Horizon 2 Modding

hi i have downloaded the game and modded it with horizon obvs. but the thing is when you try to put in the completed trophies to 10 on all aces ect it crashes the game. ive beem playing around abit with the mod tool but can anyone elese help me on how i can get around doing the whole career as i just wanna mess about. PS I HAVE A CREW IF ANYONE WANTS TO JOIN ADD ME ON XBOX LIVE LiMeYMuLcH (AS SEEN)