Do check if HTTP is disabled and if HTTPS is actually enabled using "show ip http" and if a SSL/TLS certificate is installed (or at least a self-signed certificate is present). The command should show all three information you might be looking for.
Context: This has happened to me in the past when I restored a configuration onto a replacement switch but wondered why HTTPS wasn't working afterwards only to realized quite a bit later that no certificate was present - hence the switch couldn't actually enable HTTPS (and I also had disabled plain HTTP).
