Open Graph and publishing videos in classmates from smotri.com. What are we doing wrong?

Question

Video

Actually? until we added the https protocol on the smotri.com website, when we published a link to a page with a video in classmates, our embed was loaded there.
Now it's just a link.
What are we doing wrong?
url for example: smotri.com/video/view/?id=v30248726291
explanations:

I correctly understood that links from http were added normally, but not from https?
The website is currently not opening via https.
What was given on https pages?
Now there

<meta property="og:image" content="https://frame5.loadup.ru/72/bc/3024872.3.3.jpg" />

maybe by mistake on the https page the link was http.

Now generally from any protocol it is not added.
The site pages themselves remained on the http protocol, but insecure content, such as the player, is now served over both http and https.
To do this, we did not indicate the protocol in micromarkup and opengraph, but after that we stopped publishing videos to classmates. Now we have specified the https protocol for video and previews in opengraph, but the problem has not been resolved.

Answer 1

We had only http player added in trusted ones.
I asked my colleagues to also add the https version, it should start embedding soon.
PS: the problem is in the og:video tag.

Answer 2

This means that it is undesirable to connect under the root.
This user is sort of virtual, and use sudo rather than su to work with administrative privileges. This is an official wish if you see a similar error.