Article modules doesn’t work on Avada Theme

Hi, I’m having a problem with the plugin. I’m sure the problem depends on Post Grid because when I deactivate it, everything goes back to working properly.
Below is the description of the problem:
Within a page / article, when post grid is active, I am no longer able to use the side modules (public, format, etc …) and the additional modules at the bottom of the page (Yoast SEO, WP Seo structured data scheme , Fusion page options and others …). The modules, when opened, works fine. But if they are not open, there is no way to open it and so, i cannot use it anymore. I cannot compress and extend them.
Plus, i cannot switch to the Avada editor.
For information, use Avada Theme, last update.