Products Appear Twice

I just installed the free version of Product Catalog and am trying to set it up. When I put a product into the plugin it is appearing twice on my page. You can see this at:
https://appletechtalk.com/shop2/.

I only have the one product in the catalog right now. I had others and they also appeared twice and I deleted everything thinking I would just start fresh but it still appears twice.

Any suggestions on how to correct this?

Regards,

David