[SOLVED] How could I check if a player owns a gamepass?

game:GetService("Players").PlayerAdded:Connect(function(player)

    if game:GetService("MarketplaceService"):UserOwnsGamePassAsync(player.UserId, 12134063) then
        print("This player has the gamepass!")
        GamepassOwned = true
    else
        print("This player doesn't have the gamepass!")
    end

end)

I want to check if a player owns a gamepass for a music changer. The script I put is only the gamepass script. I'm not getting any errors but it won't work. I've been looking at other gamepass check scripts and they look the same.