please test it before sending me info, that you did something. Again, it is a partial solution because it breaks theme in other place.
Check it out on this development site – I see that you readded images to the product, by changing their format to webp. But take a look at product archive (product loop – also in related products section) – these webp images doesn’t display at all. And if I change product main image to jpeg it appears on the product archive (product loop – also in related products section) well but again breaks the product page. It seems that theme has some issues with serving images.
Please take a look once again and test it back and forth.
Especially, look at the differences like – product image cut from the bottom with miniatures presented in the wrong place or still not correctly styled color picker.
