Thank you very much for your help, check the previous steps of the article and I see everything well, I do not have ip blocks, no firewall, nor rules applied in Cloudflare.
But the warning on the Speed tab in the domain administration menu that you add has not yet been followed.
Similarly, when entering the website, you will verify that Cloudflare services are running, such as web analytics and SSL certificate, I currently do not see error 522 on any device from which I can verify it now, and that it only appears in the Firefox browser.
But solve by clearing the browser cache and re-enter the loading site normally.
I really don’t have much information about the 522 code ad on clodflare of the image capture I made.