Can't open via domain, only by local IP, SSL Problem?

Hi everyone!
Ghost installed on a dedicated Raspberry platform.

  • https://example.com (should be, already in Cloudflare), now I can open only by local ip.
  • Ghost 4.2.0
  • Raspberry Pi 4,
  • Any
  • Error code: SSL_ERROR_BAD_CERT_DOMAIN (in browser)

Forgot to open 443 tcp on router not udp.

Hi, I am interested in doing the same, did you follow a guide? If so, could you please point me to it?