Okay, I just uninstalled, deleted save file, downloaded this very PKG from the OP, reinstalled, and loaded it up. I'm sorry, I really am, but it works perfectly :\ Created a Freq, went through the forced first tutorial, then loaded up Neotropolis and played through the entirety of "Garbage - Cherry Lips" (missing tons of notes because I've just woke up and I still feel like crap...) without a single issue. No crash, no freeze, no corruption, it all just works and works absolutely fine.
I don't know what to suggest.
I built the PKG manually, using various tools (such as Orbis_Pub_Gen and Orbis_Pub_SFO from "Fake PKG Generator") and I used Roguev2 emulator template to do it. Nothing special, no fixes, no tweaks, no special commands. It "Just Works®" as they say :\ Adding Codebreaker to this wouldn't do anything, it's a rhythm music game, what possible cheats would be of use? Plus adding CB won't fix the pagefault error you're getting.