GUI textlabel moving sideways instead of up

I made a gui and whenever you click the shadow button it says “Shadow disabled”
aight so let’s get to the point, the issue is, my text is going sideways instead of moving up ways.
this is my script:

local lighting = game.Lighting

local button = script.Parent

button.MouseButton1Click:Connect(function()

if lighting.GlobalShadows == true then

local activated = Instance.new("TextLabel",button)

activated.Position = UDim2.new(0.418, 0,0.084, 0) -- Position set to next to the button

activated:TweenPosition(UDim2.new(0, 0, -1.5, 0)) --Moving text

activated.Text = "Shadows Disabled"

lighting.GlobalShadows = false

else

lighting.GlobalShadows = true

end

end)

Probably the tweening you have set

I’m not sure, if I remove this sentence, It works fine.
activated.Position = UDim2.new(0.418, 0,0.084, 0)