PHP/AJAX plugin issue occurring on Wordpress site

General information for the website: Woocommerce Fashion Website
Kind of development: Customization of existing website
Num. of web pages/modules: 1
Description of requirements/features: I am currently building a fashion site in Wordpress using the Woocommerce theme. I have installed two plugins which are 'WOOF - WooCommerce Products Filter' which is a sidebar widget that should automatically filter products by category and tag and 'YITH WooCommerce Quick View' which is a plugin that displays a 'quick view' button below the product image and displays a popup containing the information in the product page. Neither of these plugins are working, I have also tried alternative plugins that also do not work. I need someone to find what is causing this issue then login and fix.

Here is the link to a page both of the plugins are appearing on, if someone could determine the cause of the problem from viewing this link I would award the work to that person - http://sohighstreet.com/pages/mens/