Cannot log in to Sync & Backup

Today I tried to setup Avast Password again on my freshly formatted PC. Despite being successfully logged into my aaccount in the main app, I cannot log into Avast Passwords module for Sync&Backup. I have the same problem with Avast Passwords for my Android phone - got logged out and cannot turn on Sync&Backup

https://pasteboard.co/IyMGWaX.png

Has anyone solved this problem yet?