404. That’s an error.

The requested URL /users/oauth/?server=facebook&nv_redirect=dHumQMB1Y7NfXus0WpvRHtak4KHO_-ZLqo8DTy_sH6f9HQGzTkMzlGY5ZlolwIOYaIZLxQOMpDFUsRqB9qf6pg%2C%2C was not found on this server. That’s all we know.