404. That’s an error.

The requested URL /users/oauth/?server=facebook&nv_redirect=BDST7Skfm1ovkMe6HnVIKiUnWlKe6WRDkRibZsuev8yWg0mygq5EbdeP3IMB00ZLMMjJqk7NsPUst_fLvZM9UYMlbrIK4di71ZZTplceExc%2C was not found on this server. That’s all we know.