User warning

When testing our e-commerce set-up as an anonymous user, everything works correctly up to the point of removing the item from my cart. The page reads: Your shopping cart is empty. You may continue shopping from our Product page. When I click on Product page, there appears this error:

user warning: Table 'ekai_ekai.nativecof_1' doesn't exist query: DELETE FROM nativecof_1 WHERE cid = '/cart/view' in /home/ekai/public_html/includes/database.mysql.inc on line 172.

This only happens as an anonymous user, not when I'm signed in as admin. I'm not sure if this is a bug or just something we have set up incorrectly on our server.... The site in question is at http://nativecoffee.info/ if you want to replicate the problem. Thank you for any help you can give,

Jim