Sometimes, when you want to remove a domain, sub-domain, addon domain, or even parked domain, you will found out the account is not belong to the owner of you or you might found out the domain is existed but does not belong to any owner.
With this case, you may firstly check for the ownership from the SSH with root.
where domain should be the domain name that you want to find who own it.
If you are not able to find any result from the above script. Run the following script(each a line).