minecraft steals money

i downloaded a mod (single player commands) i installed it correctly because i did install the mod like 15 times before in other versions and now i wanted to login and i cant i waited for 10 minutes (REALLY) and it doesn't let me login i tried to force update, nope it doesn't let me login so i tried to use a backup of 1.3.2 and i still can't login, ty for stealing money