404. That’s an error.

The requested URL /users/oauth/?server=facebook&nv_redirect=4sLeU1hZrUL7iG4G2mY6LBFQ_bLBGu0xoZj94dqYRD-z5ZWv4y043WOxGh5gQKL2Zjo5_bF8ntO9R7z8qdongA%2C%2C was not found on this server. That’s all we know.