No, actually the reason was that the domain name jcdesigngroup.xyz was not running a website and i was using the subdomain, when discourse tried to get SSL certificates for it, it was getting an error that the domain jcdesigngroup.xyz has no valid CAA, i configured the nameservers for it also. And after rebuilding the app, i got it running. I am having an issue with the SMTP server, but i hope it will get resolved soon.