Teleport Service Issues?

Output reads:

Unable to cast value to object: Line 10

TS = game:GetService("TeleportService")
AS = game:GetService('AssetService')

script.Parent.MouseButton1Click:connect(function()
	local player = script.Parent.Parent.Parent.Parent.Parent
	function gameC(id)
	return AS:CreatePlaceAsync(player.Name.."'s Survival", 158648073)
	end
	local id = gameC(id)
	TS:Teleport(id,player.userId)
end)