I deleted the older one because I couldn't find the password, when I try to register again, I get the message: A DNS entry for the domain “---” already exists.
Hello,
Sorry for the problem with creating an add-on domain. If you're having problems with this error, please make sure that you go into the cPanel and confirm that the add-on domain has been deleted. If you don't see the domain, you can also look at your DNS by going to the Advanced DNS editor in the cPanel and looking to see if there are any A records created with your add-on domain name. All of the A recors with your Add-on domain's name would need to be deleted before could re-create it. If you continue to have the problem, then please contact our live technical support team.
If you have any further questions or comments, please let us know.
Regards,
Arnel C.