404. That’s an error.

The requested URL /users/oauth/?server=facebook&nv_redirect=nx9DunR9ICwglJhiRrsM6HwKO4JtnG10eTYcW--5cgek2tVSMdk6OBHExV6DnwXbb4KvQZEV54z-dABHXjY5PeVLXGri1hfSW0hH03qmTGn-5dvh7ZV5wCZnZNfNVcjJ was not found on this server. That’s all we know.