This is the duplicated menu items, you can navigate to Appearance > Menus > Edit the menu and remove duplicated menu items manually.
If the issue still remains, please share your Site WP-ADMIN Login details in the Private Content field so that we can check this concern on your Site and help you out
Your login link is not working, it is redirecting to the account page. Can you please change the user role so I can further check on your site and give you a possible solution?