How do I get this weld code to work in a function?

So, I had some code that is meant to weld an object to the player whenever they touch it, I tried to modify an older code so that it is easier to modify for each object I need to weld, but when I touch the object, it doesn't do anything.

Here is the code:

function WeldEnable (Prt0, Prt1, x, y, z)
	Prt1.CFrame = Prt0.CFrame * CFrame.new(x, y, z)
	weld = Instance.new("Weld")
	weld.Part0 = Prt0
	weld.C0 = Prt0.CFrame:Inverse()
	weld.Part1 = Prt1
	weld.C1 = Prt1.CFrame:Inverse()
	weld.Parent = Prt1
	weld.Parent.Anchored = false
end

Target = workspace.CoolOlivie057
Targetpart = "LeftLowerLeg"

script.Parent.Touched:Connect(function(hit)
	humanoid = hit.Parent:findFirstChild("Humanoid")
	if humanoid then
		if script.Parent:FindFirstChild("weld") == nil then
			WeldEnable(Target:FindFirstChild(Targetpart), script.Parent, 0, -0.0965, 0)
		end
	end
end)

Here is the code before it was modified:

script.Parent.Touched:Connect(function(hit)
	humanoid = hit.Parent:findFirstChild("Humanoid")
	if humanoid then
		if script.Parent:FindFirstChild("weld") == nil then
			leftLowerLeg = hit.Parent.LeftLowerLeg
			script.Parent.CFrame = leftLowerLeg.CFrame * CFrame.new(0, -0.0965, 0)
			weld = Instance.new("Weld")
			weld.Part0 = leftLowerLeg
			weld.C0 = leftLowerLeg.CFrame:Inverse()
			weld.Part1 = script.Parent
			weld.C1 = script.Parent.CFrame:Inverse()
			weld.Parent = script.Parent
			weld.Parent.Anchored = false
		end
	end
end)

BTW, the unmodified code works.