Purchasing a domain name with eNom: 403 Error


We just installed the latest version of Domain Mapping.

An eNom account has been created and the IP address is whitelisted. In sub-sites (e.g: http://subsite.domain.com), we are now able to search for domain names (in the "Purchase Domain" section).

But as we click on "Purchase this domain", we have a 403 Error with this URL:

Can you help us?

Thanks in advance!

Best Regards!