Why isn't this gamepass script working?

local passId = 396490188

function isAuthenticated(player) 
    return game:GetService("MarketplaceService"):PlayerOwnsAsset(player, passId)
end

game.Players.PlayerAdded:connect(function(plr)
    if isAuthenticated(plr) then
        print(plr.Name .. " has bought the game pass with id " .. passId)
    end

function ontouch() 
    game:GetService("TeleportService").CustomizedTeleportUI = true
local teleportService = game:GetService("TeleportService")
local otherPlaceId = 215389447
local button = script.Parent
local loadingScreen = script.Parent.Parent
local player = game.Players.LocalPlayer

 button.MouseButton1Down:connect(function()
    game:GetService("TeleportService"):Teleport(otherPlaceId, player)
    loadingScreen.Visible = true
    for i = 1, 0, -.05 do
        loadingScreen.BackgroundTransparency = i
        wait()
    end
    loadingScreen.BackgroundTransparency = 0

Thanks for answering! Sorry for not explaining it more :\ The goal of the script is to see if you have the game pass and if you do teleport you to another part of the universe. I tested the script out ingame and when I touched the part that was suppose to do that It wasn't doing it and I can't spot anything wrong with this script so I came to you guys for help, again thanks! :)