Vps vultr failed nameserver

Boa Tarde.

Contratei recentemente um VPS na Vultr, esta instalado Centos 7 e Cpanel, uma ou duas vezes ao dia o servidor fica inacessível e preciso reiniciar pelo painel, quando volta eu recebo este email.

Dns reverso, resolver, estão configurados...nameserver NSD

Aug 29 15:17:48 server.meudominio.com named[1605]: automatic empty zone: view internal: D.F.IP6.ARPA
Aug 29 15:17:48 server.meudominio.com named[1605]: automatic empty zone: view internal: 8.E.F.IP6.ARPA
Aug 29 15:17:48 server.meudominio.com named[1605]: automatic empty zone: view internal: 9.E.F.IP6.ARPA
Aug 29 15:17:48 server.meudominio.com named[1605]: automatic empty zone: view internal: A.E.F.IP6.ARPA
Aug 29 15:17:48 server.meudominio.com named[1605]: automatic empty zone: view internal: B.E.F.IP6.ARPA
Aug 29 15:17:48 server.meudominio.com named[1605]: automatic empty zone: view internal: 8.B.D.0.1.0.0.2.IP6.ARPA
Aug 29 15:17:48 server.meudominio.com named[1605]: set up managed keys zone for view external, file '3c4623849a49a53911c4a3e48d8cead8a1858960bccdea7a1b978d73ec2f06d7.mkeys'
Aug 29 15:17:48 server.meudominio.com named[1605]: command channel listening on 127.0.0.1#953
Aug 29 15:17:48 server.meudominio.com named[1605]: command channel listening on ::1#953
Aug 29 15:17:48 server.meudominio.com systemd[1]: Started Berkeley Internet Name Domain (DNS).

Alguém já teve esse problema e poderia me ajudar?