Is it necessary to prescribe settings for ssl in virtualhost (apache2)?

Question

Apache HTTP Server

Hello, I bought ssl, everything is as it should be. At the end of the instruction there is this:

When I set it up, an error pops up. But even without it, everything works fine (It works, don't touch it).

Answer 1

it is obligatory to register it on the front web server.
that it works fine for you without this, if your Apache acts as a front - it's not clear. either you have something else in front of Apache where someone else has already installed this certificate, or everything works fine only for you.

Answer 2

What does "beautiful" mean? The directives listed include https and specify a certificate. If https exists without it, then it is enabled somewhere else and uses a different certificate.
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