maybe you need a module to modify the custom attribue name and pictures
like this
https://www.irder.com/item/284/fashion-europe-style-elegant-female-nurse-dentist-workwear-uniform-jacket-pant.html
hello,maybe you need this the customize attribte image
like
https://www.irder.com/item/17/solid-color-formal-business-work-man-shirt-tshirt-work-uniform.html
of couse it can be changed to video
what's the code of in the hook displayshoppingcartfooter,
maybe you want to show some products or other items,
but the items is none, so you need to check the item is not none, something like, if ( $product !==null)