Nameservers Configs

• I purchased a domain and added my vps host nameservers. And also created 2 custom name servers which are pointing to my vps. here are my main domain settings. >> http://prntscr.com/h6mo94

• Then I added main domain to my vps provider DNS Panel.
  here are my vps provider DNS settings. >> http://prntscr.com/h6morx

Now I am able to access my centos web panel at mydomain.com:2030.

• here are my centos web panel settings. >> http://prntscr.com/h6mpee

• Now I am pointing another domain example.com(ns1.oxihosting.com, ns2.oxihosting.com) to one of my directories. but it is not working. here is the error >> http://prntscr.com/h6mqp3

What I am doing wrong ?? how can I resolve this.

Compare your DNS setup once by following this link:- http://wiki.centos-webpanel.com/how-to-setup-name-servers