If you're seeing this page it's because you don't have a page setup as the "Index" page. The Index page is the default home page of your website. When visitors type in your domain name in their browser this Index page is displayed to visitors.
1) In the page designer open the page you want to be your index page
2) Click the Settings gear icon on this page on the bottom left of the page
3) Click the Settings gear icon on this page on the bottom left of the page
4) Now just "Save & Publish" this page!