buy link has an affiliate link and I’m not an Amazon affiliate

I deleted this plugin though I would like to use it. The book showed with the blurb and a black and white buy button, which when I clicked on it went to the bottom of the page and a red buy link was displayed which stated that someone was going to be paid as an affiliate if clicked and a purchase was made. I AM NOT AN AMAZON AFILLIATE AND I COULDN’T GET THIS OFF. How to make this work without any affiliate linking?

The page I need help with: [log in to see the link]