Clicking Add to Cart doesn't take you to cart page OR change the cart count

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Clicking add to cart on desktop and mobile, is showing the button depressed, but it doesn't take you to the cart or show the number next to the cart. When you click on the cart, the products are there. 

The last thing I changed on the site was integrating Amazon pay through the backend. Not sure if that could have triggered anything because it was working before that.

Thank you