If you are changing DNS on your .com/.net/.org/.biz/etc domain and you receive this warning all you need to do is unlock the domain.
Click on the “Registrar Lock” menu item on the left hand side menu. Select the Disable Registrar lock button. You can then change DNS.
We recommend re-locking the domain post change. This is an additional level of security on your domain to prevent it from being transferred to a new provider without your knowledge/authorisation.