Is your theme problem, does it work on the default theme in the first place?
Yes. I just installed classic theme – twenty twelve. And plugin does not work
Can you switch to the default twenty twelve and let me see your site again?
There is a problem with your page, the page is not render fully. The </body> or </html> is missing from your page and hence the wp_footer is never called and the Javascript is never loaded
It just ends at
<footer id="colophon" role="contentinfo">
<div class="site-info">
<a href="https://ww.wp.xz.cn/" title="Современная персональная платформа для публикаций">Сайт работает на WordPress</a>
</div><!-- .site-info -->
</footer><!-- #colophon -->
</div><!-- #page -->
OH! Thank you very much!!! I didn’t see that. I’ll fix this problem.
