Woocommerce Cart Issue

Good morning, i’m working on last version of wordpress and woocommerce.
My issue is very simple, I don’t know why when i surf on my website (from every browser, every computer) i see always 6 items in basket.. but it’s empty!

Here my website: https://www.elementoacqua.it

In fact if i click on basket icon i go into cart page and it’s empty.

I tried to drop wc_sessions table from phpmyadmin , deactive/reactive woocommerce plugin but nothing is changed.

Through phpmyadmin i see that in wc_sessions (is the cart?) appear records continuously, is that correct? How can i fix it?
Thank you