Why did you delete the existing forums?
Literally just the other day, community.nextdns.io was a forum based on Discourse software - I registered and posted several threads, and replied to threads. Now apparently they've deleted that and installed new community / forum software? Why would you randomly do that without telling your userbase first?
For instance - here is the thread I created that has since vanished: https://community.nextdns.io/t/how-long-does-it-take-for-denylist-change-to-roll-out/92/2