404. That’s an error.

The requested URL /users/oauth/?server=facebook&nv_redirect=PucEiAKrSGfGd8czM0-P9fDEg3rYDa0BWthTFbk1X-X5btHyVXy6JhzJ4AdnmbEpeqKMJ4wvhbNVIaaLP7IMBQ%2C%2C was not found on this server. That’s all we know.