But it seems that it does not work with PHP 8 or there is something that I do not understand.
Hi @mars29dr are you getting any errors on the site? The plugin is working as expected on my site using PHP 8.
This may be a plugin or theme conflict. Please attempt to disable all plugins, and use one of the default (Twenty*) themes. If the problem goes away, enable them one by one to identify the source of your troubles. If you can install plugins, install and activate Health Check
It will add some additional features under the menu item under Tools > Site Health. On its troubleshooting tab, you can Enable Troubleshooting Mode. This will disable all plugins, switch to a standard WordPress theme (if available), allow you to turn your plugins on and off, and switch between themes, without affecting normal visitors to your site.
