Partially deleted product (s) found! Error message during product import

Warning content:

1 partially deleted product (s) found! Delete this dross to prevent unwanted zencart behaviour by clicking here. you are seeing this because there are references in tables to a product that no longer exists, which is usually caused by an incomplete product deletion. this can cause Zen cart to misbehave in certain circumstances.

After clicking here, the following error occurs:

Deleting of product data debris failed! Please see the debug log in your uploads directory for further information.

Solution: Go to phpMyAdmin and clear the contents of the customers_basket_attributes and customers_basket tables. Remember to clear the contents rather than delete them.