We got a notification from Paypal recently that they are updating their API on October 7th 2013, which may cause your website’s ecommerce to stop working if you are using Paypal to accept payment online.
This will affect sites running OSCommerce, X-Cart, older versions of WooCommerce (make sure to update your install!) and other shopping cart systems as well as custom solutions.
If you think you may be affected by this update by Paypal, you will need to get a developer to address this issue assuming you continue to use Paypal. We are more than happy to address this for you.
Contact us if you would like us to implement the fix/update for you.