Why doesn't player GUI enable when game is published?

I have been trying to fix this problem all day now!

I tried disabling filtering and it didn't work! I tried changing the player joined script and it didn't work as well!

This is the script

game.Players.PlayerAdded:Connect(function(player)
	player.CharacterAdded:Connect(function()
local gui = player:WaitForChild('PlayerGui',1)
 local open = gui:WaitForChild("open",1)
open.Enabled = true
		end
	end)
end)

no matter what I try nothing works.

What I am trying to do: I am trying to make a script that enabled the "open" gui when the player joins.