Your SOA EXPIRE number is: 360000. That is NOT OK

Tutorials - Aug 13, 2012 | by - one comment 6,111 views

This is not a big problem in DNS records. Eventhough this  warning is annoying. The best SOA record expire time is 2 to 4 weeks .

To solve this issue, you may simply send the expire time to 4 weeks with a value of  2419200

This will solve  your domain issue.