Why does this error show up in my transformation script whenever I reactivate it?

Code:

local tracked = false
local armtrans = game.ReplicatedStorage.Transformations.RightHandTrans:Clone()
local lowarmtrans = game.ReplicatedStorage.Transformations.RightLowerArmTrans:Clone()
local weld = Instance.new("Weld")
local wiel = Instance.new("Weld")

script.Parent.Diref.OnServerEvent:Connect(function(plr, Tracker)
	local trackerdb = false
	local tries = plr.Data.Tries.Value
	if tracked == false then tracked = true else tracked = false end
	if tracked == true then
	local Char = plr.Character or plr.CharacterAdded:wait()
	local hum = Char.Humanoid
	
	armtrans.Parent = Char.RightHand
	armtrans.CFrame = Char.RightHand.CFrame
	weld.Part0 = armtrans
	weld.C0 = armtrans.CFrame:inverse()
	weld.Part1 = Char.RightHand
	weld.C1 = Char.RightHand.CFrame:inverse()
	weld.Parent = armtrans
	armtrans.Anchored = false
	
	lowarmtrans.Parent = Char.RightLowerArm
	lowarmtrans.CFrame = Char.RightLowerArm.CFrame
	wiel.Part0 = lowarmtrans
	wiel.C0 = lowarmtrans.CFrame:inverse()
	wiel.Part1 = Char.RightLowerArm
	wiel.C1 = Char.RightLowerArm.CFrame:inverse()
	wiel.Parent = lowarmtrans
	lowarmtrans.Anchored = false
	
	print("Hi")
	else 
		lowarmtrans:Destroy()
		armtrans:Destroy()
		weld:Destroy()
		wiel:Destroy()
		print("Hello")
	end

	while true do
		if tracked == false then return end
		if trackerdb == true then return end
		trackerdb = true
		print("Eo")
		plr.Data.Tries.Value = plr.Data.Tries.Value + 30
		wait(2)
		trackerdb = false
		end
end)

In this code everything is working fine until I try to reactivate the code. The second time I make the transformations appear this error occurs:

09:38:22.579 - The Parent property of RightHandTrans is locked, current parent: NULL, new parent Workspace

I really don't have a clue on what's happening. Somebody please save me.