This domain is not allowed to add. Please contact support-as@zohocorp.com for further details

This domain is not allowed to add. Please contact support-as@zohocorp.com for further details

When I add  my domain computer-company.shop and computerboss-john.shop  to Newly registered email.I got this error:
This domain is not allowed to add in Zoho. Please contact support-as@zohocorp.com for further details
I've read your other community forum topics, and both domains are NOT free domain. So what is the issue here?
Please help.