I'm very disappointed with CS-Cart. I'm using V4.3.4 and Social login has a bug. It can't retrieve email from Facebook, thus will always have error. CS-Cart is forcing me to upgrade because upgraded version has been fixed. I can't upgrade as I like as we are currently preparing for go-live. We have many custom modifications as well.
CS-Cart wants to charge me for a bug in their system. Seems like I made a wrong choice buying CS-Cart. Thumbs down and shame on CS-Cart!