How to enable SSL on ubuntu apache2 ec2 instance correctly?

ssl ssl-certificate apache-2.4

I am not getting any connection at all to your server on port 443 it feels like a firewall issue. Have you opened port 443 in you EC2 security group firewall. Have you opened it in your host's firewall ?

Update;

Your DNS is setup incorrectly

dig +short theaudioserver.com
52.25.39.220

Whereas you say you can connect via 52.24.39.220.

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