Products Shop Page Title Page is Incorrect

I've noticed the products shop page on my website displays that of a blog post. I'm unsure where to change this. I've looked in the pages section but there is no such page created as a stand alone page.

Can you please help me? This is the link. You can see the title above, on the browser window/tab displaying an ibuprofen post published.

http://www.purachicanatural.com/shopnatural/products/

Thank you.

Daisy