Weapon index error problem.

hi guys..
just now ive tried to do some weapon hack and at the end after i clicked the hacked weapon in the game, the popup msg about weapon index error came out and the game crashed.
It has been so long since last ive played this game, around 4 months ago.

Didnt hv any problem bypassing the gameguard.
just this weapon index error problem only.
So anyone able to bypass/solve this kind of weapon index error?

thx

*any tips and help is greatly appreciate.
im aware of many users love to be spoon feed in this forum