Avast firewall missing after the latest update

Right after the latest update of Avast Premium Security, I get a message of non existent firewall.
I tried a repair of the application, restarted, but the problem still exists.
Unfortunately now I have to cover the system with Windows 10 firewall.
Any suggestions ?

Thanks a lot.

Hi, see if this helps: https://forum.avast.com/index.php?topic=233126.msg1541115#msg1541115