After installing Grommunio 2022.05.01 i can't use grommunio files. When i try to access the site i get the error message:
"Upgrade erforderlich
Automatic upgrading is not enabled in config.php. To upgrade your instance, please use the command line updater (occ upgrade)."
Then i have tried to start occ upgrade via terminal and get the following error
"sudo -u grofiles /usr/share/grommunio-fiels/occ upgrade
sudo: PAM account management error: Authentication service cannot retrieve authentication info
sudo: a password is required"
Can someone help me to fix this?