domain banned by cloudflare, how to resolve it?

[thiago.dominguim]

Hello, I would like to know how I can unban my domain, for some reason while I was configuring it, I had my domain banned, naturalcerto.com

[sjr]

Your domain isn’t using Cloudflare…
https://cf.sjr.org.uk/tools/check?d6ab9c9d66334380b82b7f43e7189652#whois

How is it “banned”?