clicking items from cart goes to 404 error

I had a question. I'm having issues clicking items from the cart. Any item with only one option will work fine. Clicking them takes you to the product page as it should. However, any item that has multiple product variations will go to a 404 page. The reason is that the URL coming from the cart takes you to http://www.samplesite.com/correct_url_for_product/variation/ID_number .

Removing the variation and ID number will cause it to go to the correct product page, but I can't seem to find anything in the settings that would cause this or allow us to turn it off. Can you help us get this working? Is that not supposed to happen? Is it supposed to happen, but we have something set up wrong? Are we missing another landing page for 'variations' ?

Example URL: http://beta300.theintelligencer.net/store/products/sat-sun-home-delivery-of-the-intelligencer/

Thank you for any assistance you can give! Appreciate it!