Hamburger menu doesn't close when link is clicked

I’ve created a new website that uses a hamburger menu on tablets and phones. The menu works and moves to the target (single page website), but won’t close after it has been clicked.
I’ve already tried it on a new website where it does work, but creating a new menu doesn’t fix the issue.
Any help would be greatly appreciated!

The site is currently live on kookkeuken.nl/test