So sorry for the interruption at the forum today!
This was my fault. The renewal notices I had been receiving had said that our domain 'Apostolic FRIEND forum.com' would be expiring soon, and I ignored them because this is the old domain name that points to an old forum we had used when NFCF went down, and it wasn't set to expire till the 18th.
I didn't realize that THIS forum domain was expiring along with the other.
My bad!
We should be good to go. If you know of anyone having any problems logging in, please have them hit F5, or clear their cache:
Internet Options> Delete Browsing History> Choose Temp Internet Files, Cookies, and History.
Hopefully that will work to bring everyone back!