Logged In/Logged out menu items displayed in mobile view

Menu items are turned on and off in desktop view, i.e. when user is logged in, we don’t see register, login options, but when logged out we see register and login options.
But all menu items are displayed when in mobile view. It is also displaying all pages in the menu, i.e. Sample page which is not in menu.

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