Sentora with Opnsense

[surtek]

Hello,

I am new user in OPNSENSE. I set up Sentora to network's LAN side. I make NAT port forward to port 53 to my Sentora DNS server and create rule to allow port 53. But when i try to connect my domain from outside. it says "server DNS address could not be found. DNS_PROBE_FINISHED_NXDOMAIN". Did i miss some configuration in the OPNSENSE firewall?