My Project is duplicate from difference domain

I tried to configure two nginx projects using different domains, but the problem was The main project Let’s point out a project that uses sub-domain, is it a problem with cloudflare?

The easiest way to find out would be to set the DNS entry for the hostname to :grey: and then wait five minutes to take effect.

I do notice that the admin subdomain is also configured for www, but Cloudflare will not issue an SSL/TLS certificate for a sub-subdomain.