Okay, try now.
The problem still exists.
Shows the msg: Error from park wrapper: fakhru.com is already configured.
Still fakhru.com is not showing in Modify Add-On Domain section.
I have added the domain fakhru.com to my account. There's a "Heliohost account queued" page showing. The domain also isn't showing to the Modify Addon domain list. When I try to add it again it shows a domain already configured message.