HTTPS browser requests failing to Icecast server

crt.sh is often lagging behind, certificates logged to CT should show up there eventually but it might take a while. There are other CT search resources one can use, but in general if you actually have a cert than it's a good bet that it actually got logged, unless you're specifically getting an error from a browser about it not accepting the CT log signatures or something.

I think you'll need to be a lot more specific about what problems you're experiencing. From here it just looks like your site isn't responding on port 443 at all, which wouldn't indicate any issue with the certificate but with your firewall, router, or server settings.