I installed and configured owncloud, when you restart the server on which it is installed (where it is in use ubuntu 4.16), when as a web page I open the ip I get this error message:
“This ownCloud instance is currently in maintenance mode, which may take a while. This page will refresh itself when the ownCloud instance is available again. Contact your system administrator if this message persists or appeared unexpectedly. Thank you for your patience.”
I have not run any update, doing a search on the net, I tried to give the command:
sudo -u www-data php /var/www/owncloud/occ upgrade
but I have not solved anything...