Not sure if this affects anything: Where I have my domain name registered registered I have the following setup: robcraig.com ns1.robcraig.com | ns2.robcraig.com There is a "Glue Record" in the Advanced part of the DNS for that domain with this: ns1: 185.237.182.250ns2: 185.237.182.250 * Glue Records are an advanced tool that allow you to create nameservers based on your domain and associate them to an IP address
It will break, as you tell the DNS server that the authoritative DNS system for this zone can be reached under subdomain n2, but such a subdomain does not exist as there is no A-Record for n2, you have just one for ns2.
Corrected and dnschecker.com all in green. Thanks for your patience and assistance I've purchased the PDF to give a little support.