The Cart Add-on for Backlight 2 has been updated to version 5.0.3, featuring an important fix for PayPal compatibility. If you’re accepting transactions via PayPal in Backlight 2, then please update as soon as possible.

To update:

1. In Backlight’s admin, visit Admin => Backlight Modules.
2. Scroll to the bottom of the page, and click the link to install all updates.
3. In the menu, visit Designer => Templates => Clear Template Cache.