Error: DOMAINNAME is not a valid domain. Please add it to the cookie consent manager to authorize the domain.

If an error message saying "Error: DOMAINNAME is not a valid domain. Please add it to the cookie consent manager to authorize the domain." appears in the browser's developer console, there are a few possible causes:

1. Problem: The domain name in the URL (location.host) doesn't match the domain name listed in the Manager.
   
   Solution: Ensure that the domain is listed in the Manager and that it is an exact match to the URL.
   
   
2. Problem: The CBID is incorrect or doesn't belong to the domain group under which the domain is listed.
   
   Solution: Go to the "Your scripts" tab and ensure that the CBID matches that on the Cookiebot script tag.
   
   
3. Problem: Your subscription fee is in arrears
   
   
4. Solution: Try logging into the Manager. If you are behind on payment for your Cookiebot subscription you should be notified upon logging in.

Please see this article for for further and more detailed explanations and solutions: Error: The domain is not authorized to show the cookie declaration. Please add it in the cookie manager to authorize the domain.