Problems with AJAX cart

Greetings,
im new in this forum,
few days ago i had a problem with the AJAX cart of WooCommerce: when i try to add a product with ajax button, the cart doesn’t refresh automatically (i can’t see product addeded). It’s possible to see product in the cart, only after page refresh. I searched everywhere but i didnt found nothing useful i tried every solution posted in other forums but nothing. Can you help me?
Thank You.