Internet Security Pro 0x80072f8f - Content decoding has failed

The past few days, when trying to update Comodo Internet Security Pro, I get the following error (on both PCs connected to the router: one Win 7, one Win 10, so it can’t be a specific PC issue):
0x80072f8f - Content decoding has failed
Any ideas? I’ve looked for a download link to update manually in the meantime, but can’t find that either.

This error:

Tried again late this afternoon, now it seems to have been fixed, I was able to update both PCs.
Edit: well, it ‘runs’ the updates without errors, but doesn’t download anything, and still says: Last Update: 2 days ago.
Edit 2: Update now runs, downloads and installs. Last Update: 1 min ago. I now have database version 38506.

The problem with the downloads of installers and updates has been fixed. There was a server configuration error. Indeed the AV definitions have not been updated for two days. I have AV database 38499 installed.