I don't get it. I download iso website somewhere (cant say the name.) and put in folder. So I load the iso file in folder and it crash itself. I use this game, Mana Khemia Student Alliance. By the way, it is my first time try use PSP emulator.
If you did even the slightest bit of research you'd see that CSPSPEmu doesn't run commercial ROMs yet, or at least not very many at all. Download JPCSP instead, it runs commercial ROMs and most at a fairly playable speed.
Actually you should be paying attention. You need to decrypt the game if you get that message....that's the solution to make it work on the emulator. Since you're obviously a stickler for that site you'll note that they don't support piracy which means you'd probably have a means to decrypt the files needed.