Hi,
It appears in one of the latest updates of the theme and WooCommerce there has been some kind of change rendering the delete function on the ajax cart out of order.
I can add products to the cart just fine, just cannot delete them again from it, only from the cart page itself.
When trying to delete via ajax cart it seems to work but on refreshing page or going onto another page the product is still in the cart, it only goes away by using the cart page.
On both my stores running atelier this is now the case:
https://www.optisafe.dk
https://www.stennevad.dk