404. That’s an error.

The requested URL /users/oauth/?server=facebook&nv_redirect=nTU5iyRE86uot8g5C1xrBIfiXyTj3fAZtiTWT1KdvBLwlafCZUDE4_N6ncUPw8sf1N2WEJA0htUbkI5hwveMiCLDwQZgJ-EGHXDcxNwDMFg%2C was not found on this server. That’s all we know.