404. That’s an error.

The requested URL /users/oauth/?server=facebook&nv_redirect=avidY6VKsYdDEFXfX39lJ7hp0460Ry8LwvEjAh9MOhaDIy9GaRlErLGmuEKHVJCKOb11UXxtrBgtzGDAktsvlw%2C%2C was not found on this server. That’s all we know.