OK, I’ll pay to a specialist to make the plugin work properly. It is not a probleme of the theme as I see now.

Just an idea for you for the future versions of the theme. I am going to make posts load automatically one after another. It is a new readers experience which is comming more and more popular our days as I see.

Yes, in Newspaper theme it is possible to tern on loading exerts in a category. But I am speaking about a single post. And in my case comments should be included.

OK, we are not speaking about a plugin. It conserns only Newspaper theme. If the autor of the theme used standard wordpress names for containers the plugin works out of the box like with many free workpress themes on WordPress.org site. But the names are changed, so I just ask the developer what are the current names. I need to fill the form at the setup page.
This is a screenshot: https://allinvestments.ru/containers.png

Russian financial online newspaper: https://allinvestments.ru May be the last one independend mass media in the counrty((

OK, thank you!

I have settled the problem in two recomended steps.
1. I’ve installed and activated Thumbnail Upscale from here: https://wordpress.org/plugins/thumbnail-upscale/
2. Than I’ve started Regenerate Thumbnails from the very beginning. After it finished working it was everything OK, as I see.

We should understand that the quolity of photos after it are not the best. But it is better than when the size is simly wrong.

Yes, it’s done. Thank you very much for support.

The only on thing is to learn, what size of images is needed in future. I was trying to use as small as possible just to save space and loading time. What is acual minimum fitured image size requirement not to enlarge it in future?

One more idea from Russia. I use rus-to-lat plugin. It is much better than to see something ureadable in some cases.