404. That’s an error.

The requested URL /users/oauth/?server=facebook&nv_redirect=g3E-b5KmPT1UZ0kPucAKEHrcNOEASTx6hP-RMgHSoZTRXQ-Rg9LTbK1PeQJxTFiF8WlSGjRosjJ9ByQkGLb5axTaKQ6gbQ3mWOclDOi8JF4%2C was not found on this server. That’s all we know.