How to make Naruto Shippuden UNH3 (EUR) Demo work!

does anyone know how to make the Naruto Shippuden Ultimate Ninja Heroes 3 demo work? I have tried to download it and this is what comes out: This game could not be started (80010087) It does appear on my PSP but when I click on it says the PSP logo and then it takes me back to the main menu. Someone please help me.

The title of this is misleading.

LoL if it is a question then you should put a question mark. The exclamation mark makes it look like a statement.=0