Double XP script not working? Also the output tells me it's not a gamepass??

game.Players.PlayerAdded:connect(function(plr)
    local stats = Instance.new('Folder',plr)
    stats.Name = "StoredStats"
    local XP = Instance.new("IntConstrainedValue",stats)
    XP.Parent = stats
    XP.Name = "EXPMultiplier"
    XP.MinValue = 1
    XP.MaxValue = 3
    XP.Value = 1
    local Gold = Instance.new("IntConstrainedValue",stats)
    Gold.Parent = stats
    Gold.Name = "GoldMultiplier"
    Gold.MinValue = 1
    Gold.MaxValue = 3
    Gold.Value = 1
    if game:GetService("GamePassService"):PlayerHasPass(plr,4549604) then
        Gold.Value = 2
    end
    if game:GetService("GamePassService"):PlayerHasPass(plr,4549592) then
        XP.Value = 2
    end
end)

the script looks fine to me, but does not work. It does not increase the player's values for some reason. Also the output tells me that those ids are not game pass ids, suggesting me to use player owns asset...