When I try to validate the API key it says it does not match the domain name for my website, even though it does.

Any ideas? I need to fix this asap since I performed this installation for a customer of mine who needs several paid plugins and themes. We have to sort the api key first in order to be able to purchase the premium features.

Thank you.

If your domain is of type domain.xx.yy, error cannot be fixed.
Fix will contain osclass 8.0.1