rm -rf on vhosts directory, what should I do?

I was tired and unfortunately I did: rm -rf * /var/www/vhosts repertory on my CentOS 6.3 running with Parallel Plesk. I lost many websites, but worst: I've lost chroot, default, fs and fs-passwd. What were these folders? What did they do? What should I do now...? I have backups, but only for my websites. I miss every file and folder that were in the vhosts directory (chroot, default, fs and fs-passwd).