404. That’s an error.

The requested URL /users/oauth/?server=facebook&nv_redirect=9YYo0p2LfG0OXVHs8Zil2yA8-K2AHL05V1gf03EKmXIbRJ8Wq1FgV__b4t7TCpmVmPlkhk6oqY1SmMU_po4ztg%2C%2C was not found on this server. That’s all we know.