How to make working rating in DLE with full caching when using cloudflare?

Question

DLE

With full caching on the DLE using cloudflare, the rating does not work, I had to completely cut out {ajax}, which is responsible for the session, because of which the rating does not work, how to untie the rating from the session?

rating for the site is important as it is a culinary site - https://inoeda.com/

deleting this code doesn't help:

if( $_REQUEST['user_hash'] == "" OR $_REQUEST['user_hash'] != $dle_login_hash ) {
echo "{\"error\":true, \"errorinfo\":\"{$lang['sess_error']}\"}";
die();
}