The script is supposed to give players double points when they kill a NPC but it isn't working. Can someone help me, please?

Here's the code:

local Humanoid = script.Parent.Humanoid -- NPC Name
function PwntX_X() 
local tag = Humanoid:findFirstChild("creator") 
	if tag ~= nil then 
		if tag.Value ~= nil then 
local Leaderstats = tag.Value:findFirstChild("leaderstats") 
			if Leaderstats ~= nil then 
amount = 50
id = 564358419
for i,v in pairs(game.Players:GetPlayers()) do
	if v then
		if game:GetService("MarketplaceService"):PlayerOwnsAsset(v,id) then
			v.Leaderstats.Cash.Value = v.Leaderstats.Cash.Value + amount * 2
		else
			v.Leaderstats.Cash.Value = v.Leaderstats.Cash.Value + amount
wait(0.1)
script:remove()
			end 
		end 
	end 
end 
Humanoid.Died:connect(PwntX_X)
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