Subdomain Setup Problem

Hello,
I cannot setup my subdomain on Cloudflare.

Looks like it’s being blocked, or just unresponsive. Does it work if that subdomain is set to :grey: in Cloudflare DNS?

Well, I’m not sure if I’ve set it up correctly. This subdomain is a Square online shop and the settings for it are done in 3 different places - my host, cloudflare and Square. Can I share a screenshot of my settings with you?