Please help with duckdns and nginx

[Tismofied]

I have a duckdns domain that I use to access my Home Assistant instance through nginx proxy Addon.

I just moved to OPNsense but whenever I tried to access my home assistant instance now I get DNS rebind attack error.

Anybody know how I can set it up to access my home Assitant outside of my network through my duckdns domain?