404. That’s an error.

The requested URL /users/oauth/?server=facebook&nv_redirect=tM9TGIBBbzj65wPwC3XJs2cL6y3APvXjRAwWuE1dwROss9tkYf9f3IC0FnqzSoL7LJ2kSgFnEAS1koiEhkK1_w%2C%2C was not found on this server. That’s all we know.