Site does not display correctly or at all

The site stopped display at all - I checked plugins, and when I disable Polylang the main site displays but not correctly - content of the main site is mixed or does not display at all in some places. When I enable the plugin, the main site does not work at all. I get then an error message instead. Do you know how to fix this?
Thanks in advance

Hi, I have just discovered that that was the problem between two plugins: Polylang and Yoast SEO. Thanks :slight_smile: