Thank. I saw this solution. It automatically updates the certificate, but Plesk creates its own file based on the key, certificate and CA certificate files and does not update it automatically.
I have a question. How to connect Let's Encrypt certificate to the site. Plesk 11.5.30 (update is not an option) And how you can make the auto-update of these certificates. Let's Encrypt plesk extension works only with version 12.5 and higher