I was getting loop back errors when customers would click to view their shopping cart.

I disabled SSU for now until I can spend some time to figure out why. Before I disabled, I cleared the cache a few times.

I've also had some weird issue with another addon (Fual Slimbox) and disabled that as well.

I have PHP Version: 5.2.8 (Zend: 2.2.0) running on a shared hosting server.