Why is welding an object to the players lower leg stopping them from movement?

So I am building a game which includes a full body suit that gets welded to the player, I have the parts & for testing I have made them weld themselves to the player when the player touches them. But when any of the parts that are meant to be attached to the player's lower leg get welded, the player stops moving. I have also tried welding the part to the players foot instead but the same problem happens

here is the code:

function WeldEnable (x, y, z)
    if Prt1:FindFirstChild("weld") == nil then
        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
end

if script.Parent:FindFirstChild("weld") == nil then
end
script.Parent.Touched:Connect(function(hit)
    humanoid = hit.Parent:findFirstChild("Humanoid")
    if humanoid then

            Prt0 = hit.Parent.LeftLowerLeg
            Prt1 = script.Parent
            WeldEnable(0, -0.0965, 0)

    end
end)