Welding a red or blue above player's head. No error. How do I fix it?

This used to work like 4/5 days ago, but when I came back to it, it doesn't work There's no error or anything Also sometimes it works once in a while

Pictures: https://ibb.co/Fs6kJFJ https://ibb.co/LhFCSph https://ibb.co/FBT1DqJ

There's weld constraint inside B,l,u,e and R,e,d

local red = game.Workspace.RedTeam.OriginalRed
local equipR = game.Workspace.equipRED
local blue = game.Workspace.BlueTeam.OriginalBlue
local equipB = game.Workspace.equipBLUE
local debounce1 = false
local debounce2 = false

local function createRedForPlayer(head,hit)
	local newRed = red:Clone()
	local center = newRed.Center
	newRed.Name = "Red"
	newRed:SetPrimaryPartCFrame(head.CFrame * CFrame.new(0,3,0))
	newRed:SetPrimaryPartCFrame(center.CFrame * CFrame.Angles(0,math.rad(90),0))
	center.Anchored = false
	newRed.Parent = hit.Parent
end

local function createBlueForPlayer(head,hit)
	local newBlue = blue:Clone()
	local center = newBlue.Center
	newBlue.Name = "Blue"
	newBlue:SetPrimaryPartCFrame(head.CFrame * CFrame.new(0,3,0))
	newBlue:SetPrimaryPartCFrame(center.CFrame * CFrame.Angles(0,math.rad(-90),0))
	center.Anchored = false
	newBlue.Parent = hit.Parent
end


equipR.Touched:Connect(function(hit)
	if debounce1 == false then
		debounce1 = true
		if hit.Parent:FindFirstChild("Humanoid") then
			equipR.CanTouch = false
			equipR.Transparency = 0.5
			if hit.Parent:FindFirstChild("Red") then
				print("You're already on this team!")
				wait(2)
				equipR.CanTouch = true
				equipR.Transparency = 0
			else
				if hit.Parent:FindFirstChild("Blue") then
					hit.Parent:FindFirstChild("Blue"):Destroy()
				end
				local head = hit.Parent.Head
				local weld = Instance.new("WeldConstraint")
				createRedForPlayer(head,hit)
				local thisRed = hit.Parent.Red
				local center = thisRed.Center
				weld.Part0 = head
				weld.Part1 = center
				weld.Parent = head
				print("Welcome to the red team!")
				wait(2)
				equipR.CanTouch = true
				equipR.Transparency = 0
			end
			debounce1 = false
		end
	end
end)

equipB.Touched:Connect(function(hit)
	if debounce2 == false then
		debounce2 = true
		if hit.Parent:FindFirstChild("Humanoid") then
			equipB.CanTouch = false
			equipB.Transparency = 0.5
			if hit.Parent:FindFirstChild("Blue") then
				print("You're already on this team!")
				wait(2)
				equipB.CanTouch = true
				equipB.Transparency = 0
			else
				if hit.Parent:FindFirstChild("Red") then
					hit.Parent:FindFirstChild("Red"):Destroy()
				end
				local head = hit.Parent.Head
				local weld = Instance.new("WeldConstraint")
				createBlueForPlayer(head,hit)
				local thisBlue = hit.Parent.Blue
				local center = thisBlue.Center
				weld.Part0 = head
				weld.Part1 = center
				weld.Parent = head
				print("Welcome to the blue team!")
				wait(2)
				equipB.CanTouch = true
				equipB.Transparency = 0
			end
			debounce2 = false
		end
	end
end)