Woocommerce cart is not updating correctly

Please have a look at https://unoson.lentzit.com/produkt/ceradiver/ and add that item to the cart. When adding any item to the cart the cart is not showing any update on the items added allthough there are multiple items in the cart allready.

Also the temporary popup that should be seen when adding a product is shown behind the menu on the right side, you can only see the most top arrow for a few seconds.

I have put some time to test out a clean install, with no addons active at all…but its not fixable on this Theme. I have tried with a second theme and the cart works. Changing the theme is not an option here…some assistance would be much appreciated as we have put a lot of hours into to the content and design.

We are on the latest version of Woocommerce, templates, Enfold theme and database are updated