How to get user from SetOnSlotChanged

[ThuGie]

Yeah i kinda got this working now,
Though the cpickup still breaks the server, am i using it wrong ?
local dropItem = cPickup(Player:GetPosX(), Player:GetPosY(), Player:GetPosZ(), Window:GetSlot(Player, 0),true);

And when i get a wooden axe, cut down a tree its damaged, but when i move it in my inventory to another slot it instantly heals ?