==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): 1.6.0 MYSQL edition.
- Deployed with iRedMail Easy or the downloadable installer?
- Linux/BSD distribution name and version: Ubuntu 18.04
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MYSQL
- Web server (Apache or Nginx): NGINX
- Manage mail accounts with iRedAdmin-Pro?
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====

after upgrade to mlmmjadmin-3.1.5
mlmmjadmin failed to start
Please help

root@mail:~# systemctl -l status mlmmjadmin.service
● mlmmjadmin.service - RESTful API server used to manage mlmmj mailing list manager
   Loaded: loaded (/lib/systemd/system/mlmmjadmin.service; enabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since Fri 2022-08-19 11:25:27 UTC; 935ms ago
  Process: 6510 ExecStopPost=/bin/rm -rf /var/run/mlmmjadmin (code=exited, status=0/SUCCESS)
  Process: 6509 ExecStart=/usr/bin/uwsgi --ini /opt/mlmmjadmin/rc_scripts/uwsgi/debian.ini --pidfile /var/run/mlmmjadmin/mlmmjadmin.pid (code=exit code=exited, status=255/n/a
  Process: 6508 ExecStartPre=/bin/chmod 0755 /var/run/mlmmjadmin (code=exited, status=0/SUCCESS)
  Process: 6507 ExecStartPre=/bin/chown mlmmj:mlmmj /var/run/mlmmjadmin (code=exited, status=0/SUCCESS)
  Process: 6506 ExecStartPre=/bin/mkdir -p /var/run/mlmmjadmin (code=exited, status=0/SUCCESS)
Main PID: 6509 (code=exited, status=255)

Aug 19 11:25:27 mail mlmmjadmin[6509]: Python version: 3.6.9 (default, Jun 29 2022, 11:45:57)  [GCC 8.4.0]
Aug 19 11:25:27 mail mlmmjadmin[6509]: Python main interpreter initialized at 0x555717e02e70
Aug 19 11:25:27 mail mlmmjadmin[6509]: dropping root privileges after plugin initialization
Aug 19 11:25:27 mail mlmmjadmin[6509]: python threads support enabled
Aug 19 11:25:27 mail mlmmjadmin[6509]: your server socket listen backlog is limited to 100 connections
Aug 19 11:25:27 mail mlmmjadmin[6509]: your mercy for graceful operations on workers is 60 seconds
Aug 19 11:25:27 mail mlmmjadmin[6509]: mapped 436608 bytes (426 KB) for 5 cores
Aug 19 11:25:27 mail mlmmjadmin[6509]: *** Operational MODE: preforking ***
Aug 19 11:25:27 mail systemd[1]: mlmmjadmin.service: Main process exited, code=exited, status=255/n/a
Aug 19 11:25:27 mail systemd[1]: mlmmjadmin.service: Failed with result 'exit-code'.

===================================
Aug 19 11:28:15 mail systemd[1]: mlmmjadmin.service: Failed to reset devices.list: Operation not permitted
Aug 19 11:28:15 mail systemd[1]: Starting RESTful API server used to manage mlmmj mailing list manager...
Aug 19 11:28:15 mail systemd[1]: Started RESTful API server used to manage mlmmj mailing list manager.
Aug 19 11:28:15 mail uwsgi[7211]: [uWSGI] getting INI configuration from /opt/mlmmjadmin/rc_scripts/uwsgi/debian.ini
Aug 19 11:28:15 mail systemd[1]: mlmmjadmin.service: Main process exited, code=exited, status=255/n/a
Aug 19 11:28:15 mail systemd[1]: mlmmjadmin.service: Failed with result 'exit-code'.