I went to your website and updated the Cornerstone plugin to version 3.2.4 as it was old. Then I went to X > Settings and clicked on the Clear Style Cache button.
After that, I checked the homepage and I see that the rest of the page is not showing. That is why I decided to make a template of that page and added a new page and loaded the template there. For more information about templates please read the article below:
After that, I checked a few cases and I found that the problem is the Clients Video section. As soon as I removed that, the rest of the content shows on the front end. So you need to double check that section and see what is the problem or even better remove that section and add a new one.
Regarding the 5 columns again, please re-do the Awards section from scratch.