Amavis can't find perl modules so it does not work anymore

[Damian]

> I'm running amavis 20160426 on Ubuntu 20.04 and suddenly it stopped
> working. It looks like it is failing to find/read some perl modules.
> Is there anybody who knows how to fix it? Thanks a lot in advanced! :)

>      $ ls /usr/local/lib/x86_64-linux-gnu/perl/5.30.0/
>      Alien  auto  Bit  Compress  Date  Digest  perllocal.pod  POD2
> Text  Unicode  XML

Why do you have local (CPAN?) modules?
What are the permissions on each parent of /usr/local/lib/x86_64-linux-gnu/perl/5.30.0 and /usr/local/share/perl/5.30.0?