https://63reasons.net/health-news/ is this the one? I belive you have a custom menu set-up. In administration, on the left column, under “Appearance” should be a link “Menus”. Try add your page there to the main menu (all you have to do is some drag and drop).
Do other pages created in wordpress show anything? If not, it could be a problem with the template files (page.php, index.php). Give us a link if you can.