Add-On Domain Problem on CPANEL

I think Add-On has become a long time non-fixed bug on CPANEL. Sometimes it’s just disappeared from CPANEL. Or sometimes it behave with various symptoms :

• When user adding add-on domain and delete it and then re-adding it again, it will show error
• Or if the domain to be added was a single user account on the same server (even after being terminated) it cant be added
• Add-on just disappear after CPANEL update

Solution :

Look at this files or directory and cleanup or fix :

• File /var/cpanel/users
• Directory /etc/valiases
•  Directory /etc/vdomainaliases
• Directory /etc/vfilters
• File /etc/named.conf
• Directory /var/named
• File /etc/httpd/conf/httpd.conf

After cleaning up or do some fix, please restart Cpanel, named, and httpd server.  And vice versa .. !