Why the Gui doesn't open again when a player close the Gui after touch a part?

I was experimenting that I want that when a player touch a part, The gui shows and it's shows again when a player touchs the part again. But the script that i have it's only close the gui and it's doesn't open anymore. "It's a teleportation Gui but i want that the gui shows repeatedly"

This is the script:

local Part = script.Parent
local Debounce = false

Part.Touched:Connect(function(hit)
    if Debounce == false then
        Debounce = true
        if hit.Parent:FindFirstChild("Humanoid") then
            local plr = game.Players:GetPlayerFromCharacter(hit.Parent).PlayerGui
            script.ScreenGui:Clone().Parent = plr -- replace "ScreenGui" with the name of your ScreenGui
        end
        wait(1)
        Debounce = false
    end
end)

Close teleport gui script:

script.Parent.MouseButton1Click:Connect(function()
    script.Parent.Parent.Visible = false
end)