Inside the "Menu" page it claims that "The current theme does not natively support menus..." but I have used this theme before and it did, and in the preview and the way it displays the page there is clearly a menu created for me (which uses all my pages as menu items.)
I am not a programmer and rely on the WP software for everything. I do have WP use experience but have never faced this issue. This issue is happening on many themes, not just this one.
Please help if you know what the problem may be to allow me to set a primary nav menu and get rid of the listing of all the pages as the current menu.