Script Error ??

MrSuspect

I been getting this script error whenever i open cf, ingame and in lobby its really getting annoying and i cant find out what causes this so anyone have had this before and solved it i would like to know. The link for the pic of the error is here ; http://tinypic.com/r/15dlzkx/8, btw i can play, join games and do all other things but it just keeps popping out in the middle of the game and gets me annoyed ...