How can that happen? when you 'WhereIsIP' the domain, it shows no ip...

The nameservers works fine, I can whois/whereisip them and it shows the ip...

someone know why is this happening? thanks.

www.dnsreport.com try entering your domain there to get a report about your DNS settings. It can probably find the problems.

Has the domain name expired? I see this on occasion when the client lets their domain expire by accident.