Create a new domain in Multisys Virtual Dedicated Server
1.click on servers ->Virtualmin Virtual Servers
Click on 'Add new virtual servers, owned by' button
In Domain Name , type the domain name without 'www' (e.g. example.com)
type password of domain administrator
in 'Administration username' , use custom username , same as domain name (e.g. example.com)
disable option 'Setup IP based Virtual FTP'
Click 'Create Server'