The current code signing certificates issued by DigiCert - for the vanilla version and for the custom installer - are both valid.
An older certificate used for custom installers, issued by Sectigo, was revoked by Sectigo. When we asked to explain why they did so they never answered. We decided that Sectigo can no longer be trusted as our certificate provider so we switched entirely to Digicert.
Emailed IDs to Support@ Thanks Conrad for investigating 👍
It looks like you have version 6 and a free license key. In January we notified free license users that they should upgrade their installations to verison 7 before February 1, 2022. Then on 1 of February we provided a free upgrade key to extend the transition period for another two weeks. There is still a yellow stripe at the top of this website that notifies about the ugprade.
We are currently investingating this issue. Strangely, the servers are accessible from some locations and not accessible from others. We suspect it could be something at the datacenter. We will be updating in this thread.