Your nutricalapp.com and www.nutricalapp.com domains have certificates still in the process of issuing, which is what causes the 525 error since Cloudflare can't complete an SSL handshake with an origin that doesn't yet have a valid certificate. Additionally, the DNS for www.nutricloudpro.com and www.nutricalapp.com both show as requiring an update - make sure their CNAME records in Cloudflare point to the Railway-provided targets shown in your service's domain settings. Since you're using Cloudflare, also confirm your SSL/TLS mode is set to Full (not Full Strict) as described in our SSL troubleshooting docs.