[Question] Working iso for Gakuen Hetalia Portable?

[kswgric]

Anyone knows a existing working iso for the Hetalia PSP game? I found one on the Korean website clubbox, but that one doesn't work at all. Then I found one on the Chinese website tgbus, that one works for a little. However it shuts my PSP down after the 5th day in the game, I can never past the 1st week. It also shuts my psp down whenever I tried to read character profiles...

Please anyone knows a working iso out there?