doing sudo service mailman3-web stop sudo /usr/share/mailman3-web/manage.py makemigrations --merge sudo -u www-data usr/share/mailman3-web/manage.py migrate sudo -u www-data usr/share/mailman3-web/manage.py compress sudo -u www-data usr/share/mailman3-web/manage.py collectstatic sudo service mailman3-web start
fixed it. -- Dr Peter Chubb https://trustworthy.systems/ Trustworthy Systems Group CSE, UNSW Core hours: Mon 8am-3pm; Wed: 8am-5pm; Fri 8am-12pm.