On my server (Ubuntu 22.04 LTS and Plesk Obsidian Version 18.0.44 Update 2) there are none of the mentioned sodium.ini files and I get the error that other people are talking about.
I have Plesk Obsidian 18.0.23.
When executing the command to get info of a subdomain:
/usr/sbin/plesk bin subdomain -i subdomain.domain.com
I get this error:
[2020-02-12 21:42:44.996] ERR [panel] Call to a member function isMailAutodiscoveryEnabled() on null:
0...