Game Pass Not Working throwing a cast error how to fix?

--------------------
--| WaitForChild |--
--------------------

-- Waits for parent.child to exist, then returns it
local function WaitForChild(parent, childName)
	assert(parent, "ERROR: WaitForChild: parent is nil")
	while not parent:FindFirstChild(childName) do parent.ChildAdded:wait() end
	return parent[childName]
end

-----------------
--| Variables |--
-----------------

local GamePassService = Game:GetService('GamePassService')
local PlayersService = Game:GetService('Players')
local InsertService = Game:GetService('InsertService')
local LightingService = Game:GetService('Lighting') --TODO: Use new data store service once that exists

local GamePassIdObject = WaitForChild(script, 'GamePassId')
local ToolAssetsToLoad = WaitForChild(script, 'ToolAssetsToLoad')

local AdminTools = LightingService:FindFirstChild('AdminTools')

-----------------
--| Functions |--
-----------------

-- Makes copies of all the admin tools and puts them in target
local function CloneAdminTools(target)
	for _, tool in pairs(AdminTools:GetChildren()) do
		local toolClone = tool:Clone()
		toolClone.Parent = target
	end
end

-- When a player with the game pass joins, give them the admin tools
local function OnPlayerAdded(player)
	print("Works!")
	if game.GamePassService:PlayerHasPass(player, 4504171) then
		print("Gamepass!")
		local starterGear = WaitForChild(player, 'StarterGear')
		CloneAdminTools(starterGear)
	else 
		print("NoGPass")
		
		if player.Character then -- They've already loaded and won't get their StarterGear until next spawn
			local backpack = WaitForChild(player, 'Backpack')
			CloneAdminTools(backpack)
		end
	end
end

--------------------
--| Script Logic |--
--------------------

-- Create AdminTools if it doesn't exist
if not AdminTools then
	AdminTools = Instance.new('Model')
	AdminTools.Name = 'AdminTools'

	-- Load all of the assets in ToolAssetsToLoad and put them in AdminTools
	for _, intObject in pairs(ToolAssetsToLoad:GetChildren()) do
		if intObject and intObject:IsA('IntValue') and intObject.Value then
			local assetModel = InsertService:LoadAsset(intObject.Value)
			if assetModel then
				local asset = assetModel:GetChildren()[1]
				if asset then
					asset.Parent = AdminTools
				end
			end
		end
	end

	AdminTools.Parent = LightingService
end

PlayersService.PlayerAdded:connect(OnPlayerAdded)

It keeps throwing an error saying that Internal Server error, cannot cast instance into int64

   --if game.GamePassService:PlayerHasPass(player, 1768311517) then GPService sucks
   if game.MarketplaceService:PlayerOwnsAsset(player, 1768311517) then --one of the benefits is you can call MPService from a LocalScript wheras you can't with GPService
        print("Gamepass!")
        local starterGear = WaitForChild(player, 'StarterGear')
        CloneAdminTools(starterGear)
    else 
        print("NoGPass")

        if player.Character then -- They've already loaded and won't get their StarterGear until next spawn
            local backpack = WaitForChild(player, 'Backpack')
            CloneAdminTools(backpack)
        end
    end

https://wiki.roblox.com/index.php?title=API:Class/MarketplaceService/PlayerOwnsAsset