Need help with crash

[Cunning fox]

I've got a mod, that adds new amulet. But I have some troubly with it. When I exit game, it crashes witn

16: attempt to index field 'combat' (a nil value)

And I no longer able to start server. I realy can't understand why is it crashing... 

My prefab is here:

http://pastebin.com/MAR2X60z

I realy need your help. Thank you for taking your time to solve my problem!

Edited January 8, 2017 by makar5000

[zUsername]

@makar5000

local function onequip(inst, owner)
   owner.AnimState:OverrideSymbol("swap_body", "torso_myamulets", "skullamulet")
 
    if inst.components.fueled then
        inst.components.fueled:StartConsuming()
    end
   
	if owner.components.combat then
    	owner.components.combat.damagemultiplier = 1+.5
	end
	if owner.components.health then
    	owner.components.health:SetAbsorptionAmount(-(TUNING.WATHGRITHR_ABSORPTION*120))
   	end
end
 
local function onunequip(inst, owner)
    owner.AnimState:ClearOverrideSymbol("swap_body")
   
    if inst.components.fueled then
        inst.components.fueled:StopConsuming()
    end
   

    if owner.components.combat then
    	owner.components.combat.damagemultiplier = 1
	end
	if owner.components.health then
    	owner.components.health:SetAbsorptionAmount(0)
   	end
end