We are using the Magento web service (we don't have a server) and are having difficulties with the 'Pay with Amazon' feature on our website. When a customer tires to close an order and pay (seems to only be happening with 'Pay with Amazon') the page refreshses and will not close. When logging into Magento there is an alert telling us that there was a security update on the 5th of August, but I'm unsure if that is related to the problem we are having currently. This issue started within the last 24 hours.
Any advice would be really appreciated!
(we are using Magento ver. 1.9.1.0)