It seems there is a problem with PHP cleaning session files on LXC. Here's a quick workaround, credit to the proxmox forums:
Edit /etc/cron.d/php
And change the file like so:
Code:
systemctl disable phpsessionclean.timer
systemctl stop phpsessionclean.timer
Edit /etc/cron.d/php
And change the file like so:
Code:
##09,39 * * * * root [ -x /usr/lib/php/sessionclean ] && if [ ! -d /run/systemd/system ]; then /usr/lib/php/sessionclean; fi
09,39 * * * * root [ -x /usr/lib/php/sessionclean ] && /usr/lib/php/sessionclean