I know a few iranian friends who also have the same issues
they have to use a VPN to continue using avast but they find it very annoying so the stop using avast
perhaps the government block avast or avast block iran, nobody knows
but I think the government involve in this situation. I don't think avats do this
avast have some privacy concerns so this maybe the reason
germany AVs have a strict privacy rules so they don't really have privacy issue