404. That’s an error.

The requested URL /users/oauth/?server=facebook&nv_redirect=4jVuPpX5tDAYFRuvjx-Y1MAAJYZz7zUH42F3mdReNiETzpkc2A-8hrAVoA2HS51hYsfM9uIPQUbvnlWJBYBEO_mCDDq6ki_W9xJuGHr76wE%2C was not found on this server. That’s all we know.