NS list mismatch?

[truth]

I just wanted to ask what might be causing this problem, and how I could solve it.

This is a result from http://www.checkdns.net/

NS list mismatch: registration authority reports that domain is hosted on the following servers: 'dns26.gzo.com; dns25.gzo.com', but DNS server dns25.gzo.com reports domain to be hosted on 'dns25.gzo.com; dn26.gzo.com'. Please make sure that you configure the same DNS servers in registrar database and on your DNS

Regards.

[truth]

Solved.

Thanks to Andrew, the problem is solved very easily by correcting the DNS name server at WHM panel. 2nd Name server was dn26.gzo.com instaed of dns26.gzo.com...