Garry's Mod

Garry's Mod

Extended Paint Tool
tool doesn't work
when i use it it wont work

I also get this error

"Error creating 'proxyent_tf2itempaint' (Make sure the file is AddCSLuaFile'd and there aren't any errors!)
Requesting texture value from var "$basetexture" which is not a texture value (material: pp/copy)
Error creating 'proxyent_tf2itempaint' (Make sure the file is AddCSLuaFile'd and there aren't any errors!)"

anyone know how to fix this?