Since updating to Word Press 4.7 the “add to cart” button is not working on my site.

A window does appear stating that the item has been added to my cart, however, when clicking the “view cart” button or the cart icon at the top of the page, nothing is in the cart. When I am logged into my site and I have my website loaded the cart functions properly, only having this problem when I am not logged in, which is of course the case for my customers.

I have the latest of Enfold.