Standart cart Menu cart. How to disable one

Link doesn’t work.
Here: https://www.noidea.nl/secondsite/

Hello Melle,
I only see one cart, does that mean you solved the problem?

For what it’s worth, or anyone else having a similar problem:
You could either dig into your theme files and remove the code, or check the source of your site (‘inspect element’ in Chrome or Firefox), to see if there’s a class defined for the standard shopping cart and hide it with CSS:

.yourthemecart {
  display: none;
  visibility: hidden;
}

(replace ‘yourthemecart’ with the class of the cart)