After Few Days Game Says Files correpted

[GhostMode1]

Hey mpgh and members today i got a problem that i need a solution for it and it started about 3 months ago so i thought it would be fixed once nexon runs a patch but it still is there so when i start the game sometimes it says the file correpted in the little box like when it says you got banned i don't use mods or hacks so please some one help me solve this problem and i will +rep you and thanks you!?!?!?!

[flameswor10]

Uninstall.
Then Reinstall.

[fatpiehomo]

if that doesn't work, make a new account and try logging onto that one, if you can log in past the message box to the room list, you were banned and theres nothing you can do.