Even though we were able to upload some inventory to our ecommerce store we are still not able to upload most even though they have prices stated on Amazon. The error we have been receiving is: Invalid response. Error trying to add product to database. price is zero so it is skipped! Nevertheless the products we are selecting on amazon have an specific price, and we are not selecting products without price but even so this error we are getting. Could you please help us resolve this issue?