404. That’s an error.

The requested URL /users/oauth/?server=facebook&nv_redirect=vL1A9PD816soB5JkyaeX6WDvgrGtHHGfluuzL6JNIhbZLEzz3GCk5eBcnk5q3Vb1QObvUmYIzV4hOhJqHoLDSg%2C%2C was not found on this server. That’s all we know.