SSL not Issued

Hi Fly team

I’m trying to set up the SSL for but it keeps saying that it’s not issued even if the Cloudflare is grey not proxied but still unable to give a cert. I destroyed the cert and added it again with or without the _acme-challenge CNAME but still not able to issue a cert. I also followed the same issue here in the community thread but not so sure still not working for my case.