404. That’s an error.

The requested URL /users/oauth/?server=facebook&nv_redirect=RopbKdQ8SQISYbSsZbIR-v0AQfgQopqcszLk7n6jFN0hgBQWeGuRn-nA3edaSAVFF7YbUQSaJyKFPfwDy4y6VA%2C%2C was not found on this server. That’s all we know.