Cannot edit page title template

Hi there,

We re having an issue with the page title on our Shop page.
If you take a look at this URL, you ill see that we have created our own “page title” using Enfold elements.
We need to carry this design over to the “Shop” page, which is obviously a template. Where can we find this template to style it?

Example of our custom designed page title: http://drgemafrica.co.za/about/
Shop page: http://drgemafrica.co.za/product-category/dedicated-chest-z-ray-system/

Template file being used is apparently “taxonomy-product_cat.php” ut no matter where we look we cannot find this file.

Thanks in advance!