Home page displaying HTML instead of pictures

I was trying to update some plugins and add a script to the header.php file of the site and after making some changes the web page is no longer displaying the pictures on the homepage and rather just the HTML text. I removed all of the things that I changed and reactivated the one plugin I disabled and it corrected the problem when logged into the site as an admin but it does not reflect that on the live server. Any help would be greatly appreciated!

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

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