Magento’s version : 1.9.3.7
PHP’s version = 7.1

After getting the newer update of magento that is 19.3.7 and PHP 7.1, When i go to m y products and add them to my cart, the page is grayed out and there isn’t any pop up to confirm that i’ve succefully added my product. Then when i simply click on the page nothing happens, it just stays like that. I think that Ajax cart is not working properlly.
I would love to get help urgently.
Thanks