Your domain finshala.online has its TXT verification record set up correctly and the certificate has actually been issued successfully on our side. However, the CNAME record for traffic routing is not pointing to us. Public DNS shows your domain resolving to 151.101.2.15 (not a Railway IP), and your nameservers are dns-parking.com, which suggests the domain may still be parked or pointing elsewhere. You need to set a CNAME record for finshala.online pointing to 9my1iy7w.up.railway.app at your DNS provider for traffic to reach your service.