IPv6 Address Family is not supported - skipping UDPv6 bind

IPv6 Address Family is not supported - skipping UDPv6 bind
Fatal error: Unable to acquire TCPv6 socket: Address family not supported by protocol

Solution
1.Open /etc/pdns.conf
2.Change local-ipv6=::
3.To local-ipv6=
4.Save anda restart your power dns