404. That’s an error.

The requested URL /users/oauth/?server=facebook&nv_redirect=UX-xqIacQ4wOtpFV5AMCFEdZniL73dEpfOTioD8NMOALoOh7D-tYlAspkIzug8XWBaDqDsOvZrc0ekqWNVT-opoEVsToSlDkVaGhNGikkX0%2C was not found on this server. That’s all we know.