Problem with TTTOrderedEquipmen

[Predda]

Hello.
Excuse me for any grammatical errors.

I'm having some trouble with TTTOrderedEquipment hook.

In gamemodes\terrortown\entities\entities, I created a "passive effect" perk, for the traitors.
In the server-side, where is my script I used this hook for see when a player buy my perk, the code is this:

hook.Add("TTTOrderedEquipment", "TTTPerk", function(ply, equipment, is_item)
	if ply:HasEquipmentItem(EQUIP_MYEQUIP) then
		EquipActivated = true
	end
end)

The script are perfectly working, but if I buy my perk and after I want to buy another weapon, anything happens, it's like the hook returns to end.
Some help?