So all the "Add to Cart" buttons are working fine - when I add another item to the cart, it still remembers the other items that should be in the cart. But when I click the "View Cart" button, however, it says that the shopping cart is empty.
Could someone explain how to fix that, or why it's happening? Preferably in a way that a newbie will understand.
Here is an example:
Thank you in advance for your help!