Strange dovecot restart failure

[Slagroom]

Error: ERROR: Restart of dovecot failed.

Jun 22 05:02:05 xxxx systemd[47116]: dovecot.service: Failed at step NAMESPACE spawning /usr/bin/doveadm: No such file or directory
Jun 22 05:02:05 xxxx systemd[1]: dovecot.service: Control process exited, code=exited, status=226/NAMESPACE
Jun 22 05:02:05 xxxx systemd[1]: Reload failed for Dovecot IMAP/POP3 email server.
Error: ERROR: Restart of dovecot failed.

Jun 23 05:02:05 xxxx systemd[1]: Reloading Dovecot IMAP/POP3 email server.
Jun 23 05:02:05 xxxx systemd[53787]: Failed to create destination mount point node '/run/systemd/unit-root/tmp': No such file or directory
Jun 23 05:02:05 xxxx systemd[53787]: Failed to mount /tmp/systemd-private-dfd8236ec30e45198d64dd5368a95aef-dovecot.service-kVSoig/tmp to /run/>
Jun 23 05:02:05 xxxx systemd[53787]: dovecot.service: Failed to set up mount namespacing: /run/systemd/unit-root/tmp: No such file or directory
Jun 23 05:02:05 xxxx systemd[53787]: dovecot.service: Failed at step NAMESPACE spawning /usr/bin/doveadm: No such file or directory

[eris]

https://support.plesk.com/hc/en-us/articles/12377478163607-Unable-to-start-Dovecot-Failed-at-step-NAMESPACE-spawning-usr-sbin-dovecot-Permission-denied

[Slagroom]

This solves that ‘error’, thanks. Only issue still remaining here is that doveadm does not work with the hestiacp setup, which is sad, since it helps with text-search in emails. I’ve been using this lucene solution for that for ages.
https://doc.dovecot.org/admin_manual/doveadm_mailbox_commands/