/etc/pve got wiped; all configs lost

Hello,
I'm using proxmox 3 (pve-manager/3.1-21/93bf03d4 (running kernel: 2.6.32-20-pve)) and performed apt-get dist-upgrade in order to update things. It resulted in loss of configuration data from /etc/pve, this folder has been simply wiped. What can I do now to restore it?

Thanks