Script help

[PutraenusAlivius]

Something is wrong with the AddUseItemCallback, just like what Adrianis pointed out. AUIC takes 5 arguments. 4 names and 1 bool. You use 3 names and 2 bool's. From the looks of it, the signature looked like AddEntityCollideCallback.

Anyway, change it to this. This is just an example.
AddUseItemCallback("INTERNALNAME", "ITEMTOUSE", "ENTITYFORITEMTOUSE", "FUNCTION", true);
Change
INTERNALNAME to whatever you want the internal name to be.
ITEMTOUSE to the name of what item do you want to use.
ENTITYFORITEMTOUSE to what your entity's name that is used by item.
FUNCTION to whatever your function is.
Don't change the true.
REMEMBER TO USE QUOTATION MARKS ("") AROUND THE NAMES!

EDIT:
I noticed that you edit it. It got 6 arguments.