404. That’s an error.

The requested URL /users/oauth/?server=facebook&nv_redirect=c25zXBzyM5wkzlW7j81vIqs1q3M3A_LPmF-9ZuPbrTpF3dhUuT_ZPUwMyVJ7-cFErQat96qWBTj3hX4fiyDblA%2C%2C was not found on this server. That’s all we know.