@kirill1986 I can now see the Site Kit placed code on your site. So the caching plugin looks to be the cause. You can try disabling any JavaScript minification settings if you have those enabled or you can add an exclusion for Site Kit.
We have tested these exclusions with a number of different caching and optimization plugins, we haven’t tested with the your caching plugin. You can use one of the two following paths:
- /wp-content/plugins/google-site-kit/
- /wp-content/plugins/google-site-kit/dist/assets/js/(.*).js
I hope this helps and please let me know if you have any further questions.