why does it copy the script soo many times?

script.Parent.Touched:Connect(function(hit)
	if hit.Parent:FindFirstChild("Humanoid") then
		local player = game.Players:GetPlayerFromCharacter(hit.Parent)
		local descendants = player.Character:GetDescendants()
		if player ~= nil then
			for index, descendant in pairs(descendants) do
				if descendant:IsA("BasePart") and ("Decal") and descendant ~= player.Character.HumanoidRootPart then
					descendant.Transparency = 1
				end
			end
			local scriptt = game.ReplicatedStorage.Scrapt:Clone()
			scriptt.Parent = player.Character
			wait(11)
			scriptt:Destroy()
			for index, descendant in pairs(descendants) do
				if descendant:IsA("BasePart") and ("Decal") and descendant ~=  player.Character.HumanoidRootPart then
					descendant.Transparency = 0
				end
			end
		end
	end
end)

so basically when i hit a part i want it to copy a script but it copys it alot of times and ruining the actual mecanique so idk wat to do

You need a debounce. The character keeps touching the part over and over again, so you need to keep that from happening, there are a couple ways to go about this.

One touch This method will only allow the first person to touch it, then not anybody else.

The script beginning should look like this:

debounce = true

script.Parent.Touched:Connect(function(hit)
    if hit.Parent:FindFirstChild("Humanoid") and debounce == true then
	debounce = false

Touch then wait This method will allow somebody to touch it, then after x seconds they can touch it again.

debounce = true

script.Parent.Touched:Connect(function(hit)
    if hit.Parent:FindFirstChild("Humanoid") and debounce == true then
	debounce = false
	--All the code goes here
	wait(5)
	debounce = true
--All the ends

Hope this helped!