Hello, I am running OC 9.1.3 and Ubuntu 14.04 ... When I ran "release-upgrade" and upgraded my server to Ubuntu 16.04 it killed my OC instance. So what I have done:
1, I had to fix config in apache2 first to set right path:
ln -s /etc/apache2/conf-available/owncloud.conf /etc/apache2/conf-enabled/
2, When I access https://myserver/owncloud it was showing blank php code, so I had to install php7 again:
sudo apt install php libapache2-mod-php php7.0-mbstring
3, PHP is running now, php -v
PHP 7.0.13-0ubuntu0.16.04.1 (cli) ( NTS )
4, When I acces OC page again, It shows blank empy page without any error. I can't see any errors in log. What should I do next to fix my OC instance? I was looking to similar forum posts but there is no clear solution.