I can't make a gui that opens with a ClickDetector open again after it's closed. Help?

The title may have been confusing, so I'm sorry, but I'm trying to make a dialog gui from scratch (I'm new to scripting, I'm trying to make things myself so I can understand how they work) and you have to click a player to enable the gui. It works once, I can click the player, it enables the gui, I click the close button, and it closes. When I click the player after that, It doesn't get enabled. I'm not sure what to do about it.

script.Parent.MouseClick:Connect(function(player)
    player:WaitForChild("PlayerGui").dialog.Enabled = true
    player.Character.Humanoid.WalkSpeed = 0
    player.Character.Humanoid.JumpPower = 0
    print("open");
end)

^^^ The code to enable the gui

vvv The code used to close the gui

script.parent.op3.MouseButton1Click:connect(function(player)
    game.Players.LocalPlayer.PlayerGui.dialog.Enabled = false
    game.Players.LocalPlayer.Character.Humanoid.WalkSpeed = 16
    game.Players.LocalPlayer.Character.Humanoid.JumpPower = 50
    print("close");
end)

The "print("open");" still prints after the first time closing even though it doesn't get enabled.

Thank you in advance to anyone who responds.