My shop gui does not reappear after I press close, is there a solution?

After closing the shop gui, in which opens when you step on a certain part, it does not reopen, I will show you the code I did. Pop up shop:

function touch(hit)
    if game.Players:findFirstChild(hit.Parent.Name) ~= nil then
        player = game.Players[hit.Parent.Name]
        if player.PlayerGui:findFirstChild("Info") == nil then
            gui = script.Info:clone()
            gui.Parent = player.PlayerGui
            repeat
                wait() 
            until (player.Character.Position - script.Parent.Position).magnitude > 0
        end
    end 
end

script.Parent.Touched:connect(touch)
GuiNameHere.Enabled = true

Close/open: print("Close button loaded")

button = script.Parent window = button.Parent

function onClicked(GUI) window:remove() end script.Parent.MouseButton1Click:connect(onClicked)