Problems with registered computers in SSLC

Hello, 

I recently logged in to the Altera SSLC to renew a license. I used to have multiple host computers registered, which now seem to be missing: 

(None appear either when opening the "View All Computers" window)

So I tried to re-create the computer that is to host said license, and I came upon the following error: 

It would seem that the computer both exists and does not exist! For the sake of seriousness and good taste, I will abstain from making any jokes about Schrödinger and quantum superposition. 

In any case, I see some maintenance is going on today, so that might be related to the issue. 
Otherwise, I would greatly appreciate if this could be looked into.

Thank you and regards,
Noah