Affiliate Store Links Not working

I recently downloaded this plugin. I have a lot of affiliate links on my site for amazon or Barnes and Nobles. When you attempt to purchase one of these products from facebook, it takes you to my site’s shopping cart but then an error comes up. Any suggestions on what do do? I’m going to deactivate the plugin for now. Hopefully there is a workaround. https://www.JamesMillerLifeology.com
https://www.facebook.com/jamesmillerlifeology.