404. That’s an error.
The requested URL /users/oauth/?server=facebook&nv_redirect=b8E0mcM4GLDsnxQbwIpQ9yijFIPiZbDmrqEiVH1KUZ8G5Dv2243RnplxpgVxEFl6 was not found on this server. That’s all we know.
/users/oauth/?server=facebook&nv_redirect=b8E0mcM4GLDsnxQbwIpQ9yijFIPiZbDmrqEiVH1KUZ8G5Dv2243RnplxpgVxEFl6