Downtime 
While updating the certificate, I realized I'm still running Fulcrum-1.12.0 while Fulcrum-2.1.1 is available, so it's time to upgrade. That means
backup up the database*, and converting it to a new format. I'll post here when it's running again.
*Due to time and disk space restrictions, I'm doing this without backup. If it fails, I'll have to recreate Fulcrum's database from scratch. Living on the edge
Done! electrum.loyce.club:50002 is back online!