Domain registration with route 53 failure

getting this email, what could be the problem Dear AWS customer,

We recently received an online request from your AWS account to register the following domain name:

heviktech90.com

We weren't able to register the domain name. This is because:

We can't finish registering your domain. Contact AWS Support at https://console.aws.amazon.com/support/home?region=us-east-1#/case/create?issueType=customer-service&serviceCode=billing&categoryCode=domain-name-registration-issue for further information. We apologize for the inconvenience. For more information, contact Amazon Web Services Customer Support.

Regards, Amazon Route 53