Rock Band Unplugged CFW PSP

Hey guys, sorry to ask this question if it's already been answered.. But recently I downloaded Rock Band unplugged from my PS3 and transferred it over to my PSP via USB cable. I ran the game but I got an error 80010013. I researched and some people said that it wouldn't work with my fw version, which was 5.00M33-6 at the time. So I googled around and downloaded 5.50Gen-A and installed successfully.. Ran the game again and I still got the same error.. So I downloaded the update 5.50Gen-B and re-downloaded Rock Band Unplugged, this time from the Playstation Store via PSP. I went to the game and tried to play, got the same 80010013 error.

So my question, will CFW not work with this game? Or is it just this CFW version? Or maybe do I need to install something to play?

Any help is greatly appreciated