Surfacegui label text is nothing with a textbox?

Button script (Script)

function thingy()
    local mess = game.Workspace.newestad.Part.ScreenGui.TextLabel
    local mess2 = game.Workspace.newestad.part2.SurfaceGui.TextLabel
    l = script.Parent.Parent.TextBox
    mess.Text = (""..l.Text)
    mess2.Text = (""..l.Text)
end
script.Parent.MouseButton1Click:connect(thingy)

Output script of textlabel (Script)

while true do
    wait(0.1)
    if script.Parent.Changed then
        print("Changed label.")
    end
end