Homepage appearing as block in single product page

On all of my “Single Product” pages, underneath the Related Products, there is a smaller block with a portion of the home page. The problem appears to be related to the “Product (Classic)” block, but when I convert the page to a template, it wipes out my product details below the meta information. There are only three lines of code in the code editor, so I can’t delete anything there. Is there any other way to edit the “Product Classic” block, or will I have to recreate the elements of the product page individually? I have already restored a previous backup and the issue was still appearing, so I can’t be sure when the issue first happened.

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