Prosody.err contains Error binding encrypted port for https: No key

With the default Jitsi-Meet quick install, in the prosody.err log (found in /var/log/prosody directory) I see:

Error binding encrypted port for https: No key present in SSL/TLS configuration for https port 5281

I do not know that it has any deleterious effect… Others see this? Is it an issue?

I see a proposed solution here:

But I have not tried it.

This is not an issue, you can ignore this.

Thanks.