Are you perhaps referring to the slider revoltion on the front page? I can see it looks like a fresh template and does not fit the website.
I say that because you cannot edit anything directly from WooCommerce using Visual Composer as they are dynamic templates. Unless you have built a page using Visual Composer and WooCommerce shortcodes. But You would know if that is the case...
Beside that...VC is loading fine on your home page.
Please clarify the issue.