my ssl does not allow me to use Woo Cart button

As you can see from the picture, the button is linked to a product. When I click on it, it says that the product is added, even the widget shows me that there is one product but when I click on View Cart, it says that my cart is empty. I had no problem with the button until I changed my site url from http to https. Now if I remove the “s” the button works again. How do I resolve this conflict between Woo Cart buttons and the ssl?

Thank you:)