Issue An error occurred during performing of installation PREP actions. Not all packages installed.

[cptplastic]

So this just started

Upgrade or repair for 'core' (stage 'prep') is not required
===> Preparing Plesk database upgrade (revertable stage).
Trying to set psa database version to 018000000... done
===> Cumulative upgrade of Plesk database (revertable stage) has been completed.
===> Plesk database scheme upgrade has been started.


===> Plesk database scheme was not upgraded completely.


***** problem report *****
===> Plesk database scheme was not upgraded completely.

[2021-03-10 08:54:33.339013] Bootstrapper has finished action (exec time: 0 sec.): parent_name='PLESK_18_0_34', sequence='prep', stage='rollback', sequence_order='1', operation='install', exec_cmd='rm -f /tmp/pp-bootstrapper-mode.flag; rm -f /var/lock/parallels-panel-maintenance-mode.flag; rm -f /var/lock/parallels-panel-upgrade-failure.flag; :'', m_arch='', output: ~empty
[2021-03-10 08:54:33.753942] Bootstrapper has finished action (exec time: 0 sec.): parent_name='panel', sequence='prep', stage='rollback', sequence_order='9999', operation='install', exec_cmd='test ! -f /opt/psa/admin/plib/scripts/update-failure-notification.php || /opt/psa/admin/bin/php /opt/psa/admin/plib/scripts/update-failure-notification.php'', m_arch='', output: ~empty
[2021-03-10 08:54:33.761240] Launching component and product checkers...
[2021-03-10 08:54:33.761306] FileFetcher: get file (~empty)/report-update
[2021-03-10 08:54:33.761520] Downloading file report-update: 0%
[2021-03-10 08:54:33.773158] Downloading file report-update: 100% was finished.
[2021-03-10 08:54:33.773540] FileFetcher: get file (~empty)/pool/PSA_18.0.34_5531/examiners/py_launcher.sh
[2021-03-10 08:54:33.773590] Downloading file pool/PSA_18.0.34_5531/examiners/py_launcher.sh: 0%
[2021-03-10 08:54:33.778831] Downloading file pool/PSA_18.0.34_5531/examiners/py_launcher.sh: 100% was finished.
[2021-03-10 08:54:34.377248] Examination executed ["/root/parallels/pool/PSA_18.0.34_5531/examiners/py_launcher.sh" "/root/parallels/report-update" --op upgrade --rc 1 --start-flag /var/lock/plesk-report-update.flag --to=18.0.34.0 --from=18.0.33] with code 0
Output:
~empty
Error:
~empty
[2021-03-10 08:54:34.377574] Error: An error occurred during performing of installation PREP actions (see log for details). Installation was rolled back.
Warning! Not all packages were installed.
Please check if your system services are operable.
Please resolve this issue and try to install the packages again.
Visit Plesk Help Center to search for a solution.

 

[weltonw]

Try running plesk repair db -y