DO_bitem_change error!!!

crazystephan

Dear Papaya,

After several years im trying to get back in shape on the warrock game, 

However when I try to equip a weapon on my 5th slot (that I still have left for 239Days), it says DO_BITEM_CHANGE ERROR!!!, and doesn't let me use a 5th Slot weapon. 

I checked files, updated the game but still, nothing seems to work.

I would like to know how to fix this error,

Kind Regards, A warrock Veteran