You will see the above message if you fail to respond to the RAA verification email sent to you.
When registering a domain name, you need to verify the email address of the domain owner. This is a requirement imposed by ICANN - the governing body in charge of the domain name space. They send an email and you must click the link to verify your email address.
You have 15 days after registration to verify the email address. If you fail to verify the email address. The domain name is automatically suspended.
If you do not see the email in your main folder, it will be in your spam/junk folder. You can search for the email with the below details:
Email Subject: RAA verification
From Address: firstname.lastname@example.org
The domain name is instantly activated upon verification, however it may take a few hours for the DNS to propagate.