Nameserver glue records are incorrect. The ns1.box.p.nixc.us and ns2.box.p.nixc.us nameservers must be configured at your domain name registrar as having the IP address 184.108.40.206. They currently report addresses of [Not Set]/[Not Set]. It may take several hours for public DNS to update after a change.
I have no idea why suddenly my DNS has fallen out of spec I’d disabled DNSSEC to try to follow along with some troubleshooting in another thread but that still has no effect. What do I do to resolve this?