404. That’s an error.

The requested URL /users/oauth/?server=facebook&nv_redirect=7164q2sIowu7_uNX_IgWOC4dSeoFZcoMVkH1bhvA8uTpSdbvh2bAYQBMGosCFPBPCndBMPSewLPgDUdLvsmchUosMtsGfijJL6EKoQaJD8g%2C was not found on this server. That’s all we know.