How do I enable a certain GUI if the player has a game pass?

Hi, I'm trying to make a gui only appear to that player if they own a game pass. Here is the script I tried using, but it didn't work:

local PassId = 11379241
game.Players.PlayerAdded:connect(function(p)
	if game:GetService("MarketplaceService"):UserOwnsGamePassAsync(p.UserId, PassId) then
		p.PlayerGui.speed.Frame.Visible = true
	end
	p.CharacterAdded:Connect(function()
		p.PlayerGui:WaitForChild("speed"):WaitForChild("Frame").Visible = true
	end)
end)

If you see anything wrong please let me know, thanks.

I would recommend using Remote Functions to utilities this.

-- Server Code

local YourEVENT = something

local PassId = 000000

YourEVENT.OnServerInvoke = function(plr)
	if game:GetService("MarketplaceService"):UserOwnsGamePassAsync(plr.UserId, PassId) then
		return true
	else
		return false
	end
end

-- Client

local YourEVENT = blah blah blah

if YourEVENT.InvokeServer(plr) then
	print('Player Has Pass')
       -- Make the Gui visible here
else
	print('Player does not have pass') 
       -- Don't do anything or make it not visible to double check
end