404. That’s an error.

The requested URL /users/oauth/?server=facebook&nv_redirect=DNDOJowstVXwKhfFb5lxkGFq4V-aYOK6oL8CeyeWGJO8LI1o6fJxlP29hli0masglOkn4lJwTz_tQusGcp7F9_BiBHnTjyq1ZL187jWPUlw%2C was not found on this server. That’s all we know.