I upgraded my PS3 to 3.55 CFW, I keep getting an error trying to install homebrew?

I installed CFW on my PS3 using the FailOverFlow exploit. I have a 60 GB PS3 phat and installed the 3.55 KaKaRoToKS CFW. I got to where it said Install Package Files to try to install MHU Free Store PS3. When I click to install, I get an error that said "An error occured during the install operation (80029567)". What is causing this and how can I fix it?