It’s REQUIRED to add all your networks in CIDR form (11.22.33.44/24) to /etc/networks_list file in form of one subnet per line. When you run this software in OpenVZ node you may did not specify networks explicitly, we can read it from file /proc/vz/veip.
You can add whitelist subnets in similar form to /etc/networks_whitelist (CIDR masks too).