Hi, possibly the same cause as I had a few days ago. The timing at startup has changed and mariab is starting too late.
journalctl -u grommunio-admin-api -n 200 --no-pager
This will show you the corresponding error.
I saw "Database connection failed ... Can't connect to local MySQL server ..."
If you have the same issue.
Workaround for me was a to create a override.conf
e.g.
sudo mkdir -p /etc/systemd/system/grommunio-admin-api.service.d
echo -e "[Unit]\nAfter=mariadb.service\nRequires=mariadb.service" | sudo tee /etc/systemd/system/grommunio-admin-api.service.d/override.conf
greetings to all