When trying to upgrade to NC18.0.1 I get the follwing log / error message
Running nc-update-nextcloud Current Nextcloud version 22.214.171.124 Available Nextcloud version 18.0.1 Download Nextcloud 18.0.1... Back up current instance... check free space... Maintenance mode enabled backup database... backup files... backup /var/www//nextcloud-bkp_20200315_1584287334.tar.gz generated Maintenance mode disabled Install Nextcloud 18.0.1... Restore apps... * calendar * contacts * files_texteditor * gallery * news * nextcloudpi * notes * previewgenerator * previewgenerator.orig * tasks Fix permissions... Upgrade... Nextcloud is not installed - only a limited number of commands are available Command "upgrade" is not defined. Abort
Runnning system is running without problems behind Traefik reverse proxy on port 8443.