All pages appear in the menu

I’m setting up a woocommerce page on my website. I’m having a lot of problems, since I don’t seem to be able to have a checkout page displayed correctly.

Now something very bad happened: all the pages appear in the menu, instead of the pages I chose and that until half an hour ago displayed correctly.

If I go to the menus settings, only the pages I chose appear. I removed the pages I created this morning, but not the general woocommerce pages, whiich took me quite a while to set up.

Any idea on how to solve this “crazy menu” issue?

The page I need help with: [log in to see the link]