Why text and pictures do not attach when sharing social networks. buttons?

Question

JavaScript

There is a blog and articles on it, there are social media on the articles. buttons. When you try to share, the text and pictures do not cling to any social media. networks. Why? Could this be a problem with free hosting from beget.ru?
Tags og:title, og:image and other social media I have already tried buttons.
Example: theplotnikova.ru/culture/sayagova - at the bottom of the page there is a social. buttons.

Answer 1

Why?

Because og markup is commented out?

<!--    <meta property="og:title" content="The Rock3" />-->
<!--    <meta property="og:url" content="http://theplotnikova.ru/society/dementia" />-->
<!--    <meta property="og:description" content="ffff" />-->
<!--    <meta property="og:image" content="http://theplotnikova.ru/wp-content/uploads/2012/12/Censorship-small.jpg" />-->

As far as I remember, Yoast SEO and JetPack can automatically generate og markup. Surely there are other plugins to solve this problem.