Error: ”Error from park wrapper: domain.com is owned by another user“

Getting following error while trying to add a domain as addon domain:

Error from park wrapper: domain.com is owned by another user.

First of all Enable the option  WHM >> Tweak settings

Allow Creation of Parked/Addon Domains that are not registered

Then edit cpanel.config

/var/cpanel/cpanel.config
autocreateaentries=0

Save the file and try adding the domain again.