[Plugin: Diamond MultiSite Widgets] Broken shortcode

Hi there
The same shortcode has stopped working in one place for some reason while it is working without problems in another. Site – https://www.placebo.su/blogs/kommentarii-seti
You can see the last comments on the left. On the right, in a tab, comments don’t renew.
https://gyazo.com/0dca347a976575acd507f2ae8332b6c8

When a plug-in is turned off it looks like that:
https://gyazo.com/503784302d8244a04a5f06f0b0b1edd0

The following code is put in the theme(tabs):

<ul id="blog_comm">
<?php echo do_shortcode('[diamond-comment format="{author} писал(а): &nbsp;{title}" exclude="1" count="5" before_content=" " after_content=" "]'); ?>
</ul>

What is the problem?

https://www.ads-software.com/extend/plugins/diamond-multisite-widgets/