Uncaught ReferenceError: jQuery is not defined

Hi, 

checking the Console I see the following alert: “Uncaught ReferenceError: jQuery is not defined”
It leads me to discover that the error comes from “woocommerce-ajax-filters”

In wp-config.php I added the following code: 
/** Absolute path to the WordPress directory. */
if( !defined('ABSPATH') )
define('ABSPATH', dirname(FILE) . '/');
define('CONCATENATE_SCRIPTS', false);

The alert is gone but only when I am logged in as admin or business/private customer.
If I browse the online store as a guest, without registration, I see the alert.

Could it be a problem related to the cache?

The page I need help with: [log in to see the link]