How to replicate the error:

1. Go to this test page
2. Click on the link "Mack, ma che principe sei?" → The page opens correctly
3. Open VE edit mode
4. Click on the same link as before → The page reached is empty because the link doesn't end with a "Question mark"

However, if you create a new link when editing using VE and click on the link, you reach the exact page.