Screwed up theme (Function) layout

Hi guys,

One of my websites, http://www.harecodierenvriend, needed a couple updates a few days ago. After updating my theme went screwed. The woo commerce part layout changed at (http://www.harecodierenvriend.nl/webshop), but the rest of the site remained unchanged (the informational parts). I truly can’t find out what went wrong with my theme (function), can someone please help me? Thanks in advance!