You may encounter one of the following similar error messages while attempting to enter a nameserver for your domain"
[2303-Object does not exist (Failed Finding: Host(ns1.domain.com))]
OR
Unable to update nameservers: Nameserver [ns1.domain.com] doesn't exist at the registry
The above similar errors occurs when the name servers you wish to direct
your domain name to are currently missing from the foreign registries.
Registries such as those for .info, .biz, and .org maintain their own databases
of registered, valid name servers, rather than going by the default .com/.net
registry database; if the name server values are not registered, the
aforementioned error occurs.
To correct the issue, contact the administrator of the desired name
servers and request that they register the name servers with the foreign
registries. Usually this is done by having the DNS administrator log into their
domain registrar's control panel. Once this action has been performed, you may
then proceed with your desired name server changes.