404. That’s an error.

The requested URL /users/oauth/?server=facebook&nv_redirect=w2fIhrZUHHgFzMW11j7pdU3dtM_5-PHyhEwR1LGGtqgXI0dTw_eN5MdexyM6VsxqXBGEEqmZSDDC_XoUwuMlkw%2C%2C was not found on this server. That’s all we know.