OPENVPN + IPSEC + DNS

[mrsipping]

 hello everyone,
hope this is the right place to ask this question.... i have configured opnsense-1 and created an openVPN VPN. The idea is to create an IPSEC tunnel with another opnsense-2 so that I can reach the machines via ip tern of that project. I was able to create this tunnel and if I connect with the VPN I created in opnsense-1 via terminal I ping the internal ip to a server under opnsense-2 it works.
But now I would like to create a DNS so that I don't have to remember the internal IP of that server every time and then through opnsense-1 I would like to use Unbound DNS but after following the documentation I try to ping the created address but it doesn't give any signal and the only time I got error logs were as follows:

fatal error: Could not set up local zones
error: local-data in redirect zone must reside at top of zone, not at b93347926051bf4e344176bb187cf7dc.xxxxx.net IN A 10.xxx.xxx.10

Does anyone know how to help me. thanks