Configuration problem

I can’t continue with the configuration since whois tells me this Failed to perform lookup using WHOIS service: TLD_NOT_SUPPORTED.
, could you help me please?
Greetings, Gioele Meloni.

Welcome to the community!

That means that Cloudflare Registrar doesn’t support that TLD. You’ll need to register your domain elsewhere, and then add it as a site in Cloudflare.

This guide may also be helpful for you:

Hope it helps!