to summarize, for the history.
it was suggested to change IP for affected domain temporary
/usr/sbin/plesk bin ipmanage -u 1.2.3.4 -type shared
/usr/sbin/plesk bin subscription -u affectedDomain.tld -ip 1.2.3.4
but it does not work due to error that it is already used by another account (even type was successfully changed to shared)
then we've tried to find owner of affectedDomain.tld
/usr/sbin/plesk db -e 'select d.id, d.displayName, d.cl_id, c.login, c.type from domains d inner join clients c on c.id=d.cl_id where d.displayName like "affectedDom%";'
and was trying to add available IP to this owner
/usr/sbin/plesk bin ip_pool --add 1.2.3.4 -type shared -owner <owners_login_here>
but it is failed with the same error msg.
as the another one temporary workaround which should help to boot server it was suggested to suspend the problem domain:
/usr/sbin/plesk bin subscription --suspend affectedDomain.tld
it is strange that there's no such files at /etc/sysconfig/network-scripts/ifcfg* at the Samet's server.
at the my test environment there are
/etc/sysconfig/network-scripts/ifcfg-ens3 /etc/sysconfig/network-scripts/ifcfg-ens4:1
but Plesk tries to modify file /etc/sysconfig/network-scripts/ifcfg-ens4
so changes made (added IP alias) are not persistent and lost after reboot.
the root cause looks similar to bug PPP-56953 that we're going to fix in 18.0.44 (incorrect managing IP aliases on AlmaLinux).
it was noted that renaming
/etc/sysconfig/network-scripts/ifcfg-ens4:1 to /etc/sysconfig/network-scripts/ifcfg-ens4
or even create appropriate symlink - WILL NOT HELP and maybe lead to the inability up network interface.
finally it was recommended to contact provider's technical support or
Plesk Technical Support directly.