Error Output Code: 20:38:30.638 - Expected BasePart got Model for Weld:Part0. 20:38:30.639 - Stack Begin 20:38:30.639 - Script 'Workspace.R15_Kit.Button.LeftArm', Line 19 20:38:30.639 - Stack End

function onTouched(hit)
	if hit.Parent:findFirstChild("Humanoid") ~= nil and hit.Parent:findFirstChild("LeftArm") == nil then
		local g = script.Parent.Parent.LeftArm:clone()
		g.Parent = hit.Parent
		local C = g:GetChildren()
		for i=1, #C do
			if C[i].className == "Part" or "Union" then
				local W = Instance.new("Weld")
				W.Part0 = g.Middle
				W.Part1 = C[i]
				local CJ = CFrame.new(g.Middle.Position)
				local C0 = g.Middle.CFrame:inverse()*CJ
				local C1 = C[i].CFrame:inverse()*CJ
				W.C0 = C0
				W.C1 = C1
				W.Parent = g.Middle
			end
				local Y = Instance.new("Weld")
				Y.Part0 = hit.Parent["LeftArm"]
				Y.Part1 = g.Middle
				Y.C0 = CFrame.new(0, 0, 0)
				Y.Parent = Y.Part0
		end

		local h = g:GetChildren()
		for i = 1, # h do
			if h[i].className == "Part" or "Union" then
				h[i].Anchored = false
				h[i].CanCollide = false
			end
		end
		
	end

end

script.Parent.Touched:connect(onTouched)
Anonymous