Add to cart button from product page not working anymore

For a couple of weeks I discover a problem.
If I am on my shop page: https://model-kits.nl/shop/ there are buttons to add the product directly in the cart.
That was always before.
If you click now on ‘bekijk’ (it’s dutch) you go to the product.
That is not what I want and was never before.
I want that after you click on the button the product will be added to the cart.
I can not find a option to change the behaviour of the button in the settings.
Anyone can help me with it to change the button so it will be after click on it the product will be added to cart?
Thank you.