VERY IMPORTANT

When you start a process like deleting a domain or any other process, make sure that you let the system FINISH the process. You need to see the "Done" in the bottom left corner of your browser. Then you can continue with other processes. If you interrupt the process before you see the "Done" appear, this would result in a number of problems from not being able to re-use a username, domain name, to leaving junk in the httpd.conf file etc.