I made a snapshot of my mailman3 VM before running a script to modify a bunch of lists. I stupidly did not turn the VM off before I made the snapshot, so Im almost certain this is a corrupted DB problem from doing a snapshot restore. The issue is now that the mailman service will not start automatically. Im able to get to the web interface but I see the error "Mailman REST API not available. Please start Mailman core." I can su to the mailman user and run 'mailman start -f' which seems to get things going again and shows the lists as they were before the snapshot, which is good, but I would like to get the issue fixed so that services start normally. Any help is appreciated. Here is some terminal output:
''' root@mlist3:~# systemctl status mailman3 × mailman3.service - GNU Mailing List Manager Loaded: loaded (/etc/systemd/system/mailman3.service; enabled; preset: enabled) Active: failed (Result: exit-code) since Mon 2025-04-28 13:24:43 UTC; 1min 39s ago Process: 1873 ExecStart=/opt/mailman/venv/bin/mailman start (code=exited, status=2) CPU: 776ms
Apr 28 13:24:42 mlist3 systemd[1]: Starting mailman3.service - GNU Mailing List Manager... Apr 28 13:24:43 mlist3 mailman[1873]: Usage: mailman start [OPTIONS] Apr 28 13:24:43 mlist3 mailman[1873]: Try 'mailman start -h' for help. Apr 28 13:24:43 mlist3 mailman[1873]: Error: A previous run of GNU Mailman did not exit cleanly (stale_lock). Try using --force Apr 28 13:24:43 mlist3 systemd[1]: mailman3.service: Control process exited, code=exited, status=2/INVALIDARGUMENT Apr 28 13:24:43 mlist3 systemd[1]: mailman3.service: Failed with result 'exit-code'. Apr 28 13:24:43 mlist3 systemd[1]: Failed to start mailman3.service - GNU Mailing List Manager.
root@mlist3:~# systemctl start mailman3 Job for mailman3.service failed because the control process exited with error code. See "systemctl status mailman3.service" and "journalctl -xeu mailman3.service" for details. root@mlist3:~# journalctl -xeu mailman3.service ░░ ░░ A start job for unit mailman3.service has begun execution. ░░ ░░ The job identifier is 662. Apr 28 13:24:43 mlist3 mailman[1873]: Usage: mailman start [OPTIONS] Apr 28 13:24:43 mlist3 mailman[1873]: Try 'mailman start -h' for help. Apr 28 13:24:43 mlist3 mailman[1873]: Error: A previous run of GNU Mailman did not exit cleanly (stale_lock). Try using --force Apr 28 13:24:43 mlist3 systemd[1]: mailman3.service: Control process exited, code=exited, status=2/INVALIDARGUMENT ░░ Subject: Unit process exited ░░ Defined-By: systemd ░░ Support: http://www.ubuntu.com/support ░░ ░░ An ExecStart= process belonging to unit mailman3.service has exited. ░░ ░░ The process' exit code is 'exited' and its exit status is 2. Apr 28 13:24:43 mlist3 systemd[1]: mailman3.service: Failed with result 'exit-code'. ░░ Subject: Unit failed ░░ Defined-By: systemd ░░ Support: http://www.ubuntu.com/support ░░ ░░ The unit mailman3.service has entered the 'failed' state with result 'exit-code'. Apr 28 13:24:43 mlist3 systemd[1]: Failed to start mailman3.service - GNU Mailing List Manager. ░░ Subject: A start job for unit mailman3.service has failed ░░ Defined-By: systemd ░░ Support: http://www.ubuntu.com/support ░░ ░░ A start job for unit mailman3.service has finished with a failure. ░░ ░░ The job identifier is 662 and the job result is failed. Apr 28 13:30:21 mlist3 systemd[1]: Starting mailman3.service - GNU Mailing List Manager... ░░ Subject: A start job for unit mailman3.service has begun execution ░░ Defined-By: systemd ░░ Support: http://www.ubuntu.com/support ░░ ░░ A start job for unit mailman3.service has begun execution. ░░ ░░ The job identifier is 1074. Apr 28 13:30:21 mlist3 mailman[1986]: Usage: mailman start [OPTIONS] Apr 28 13:30:21 mlist3 mailman[1986]: Try 'mailman start -h' for help. Apr 28 13:30:21 mlist3 mailman[1986]: Error: A previous run of GNU Mailman did not exit cleanly (stale_lock). Try using --force Apr 28 13:30:22 mlist3 systemd[1]: mailman3.service: Control process exited, code=exited, status=2/INVALIDARGUMENT ░░ Subject: Unit process exited ░░ Defined-By: systemd ░░ Support: http://www.ubuntu.com/support ░░ ░░ An ExecStart= process belonging to unit mailman3.service has exited. ░░ ░░ The process' exit code is 'exited' and its exit status is 2. Apr 28 13:30:22 mlist3 systemd[1]: mailman3.service: Failed with result 'exit-code'. ░░ Subject: Unit failed ░░ Defined-By: systemd ░░ Support: http://www.ubuntu.com/support ░░ ░░ The unit mailman3.service has entered the 'failed' state with result 'exit-code'. Apr 28 13:30:22 mlist3 systemd[1]: Failed to start mailman3.service - GNU Mailing List Manager. ░░ Subject: A start job for unit mailman3.service has failed ░░ Defined-By: systemd ░░ Support: http://www.ubuntu.com/support ░░ ░░ A start job for unit mailman3.service has finished with a failure. ░░ ░░ The job identifier is 1074 and the job result is failed. '''
Thank you in advance for any assistance.