Issue task-async-executor

[ozc]

Debian 9.13
Plesk Obsidian Version 18.0.39

I can no longer install or remove extensions. The task get stuck indefinitely. Same thing happen when i try to detect a wordpress installation or when I want to export a database.

In task-manager.log

task=262 process=262 trace=6411:616a33531be01 Starting as 'run-plesk-task-262.service' systemd unit with command: [/opt/psa/admin/bin/php /opt/psa/admin/plib/scripts/task-async-executor.php -task-id 1971]
task=262 process=262 trace=6411:616a33531be01 Start failed: Failed to start the process: exit status 1 (/usr/bin/systemd-run: unrecognized option '--quiet')

task=263 process=263 trace=6358:616a33baa2c30 Starting as 'run-plesk-task-263.service' systemd unit with command: [/opt/psa/admin/bin/php /opt/psa/admin/plib/scripts/task-async-executor.php -task-id 1972]
task=263 process=263 trace=6358:616a33baa2c30 Start failed: Failed to start the process: exit status 1 (/usr/bin/systemd-run: unrecognized option '--quiet')

task=264 process=264 trace=21827:616a39ed25862 Starting as 'run-plesk-task-264.service' systemd unit with command: [/opt/psa/admin/bin/php /opt/psa/admin/plib/scripts/task-async-executor.php -task-id 1973]
task=264 process=264 trace=21827:616a39ed25862 Start failed: Failed to start the process: exit status 1 (/usr/bin/systemd-run: unrecognized option '--quiet')

How can I fix this error ?
Regards.

 

[VNick]

Did you perform a dist-upgrade from Debian 8 recently? What's your output of apt-cache policy systemd?

Make sure systemd package is upgraded. See also the KB.