Rent-A-Hero patch

[Hazardous]

I have a back up of japanese Rent A hero, my DC is PAL, and I can't play this game. I'm download the patch for this game, the PFF-O-Matic, and I made a image with Disc juggler (v 3.5) In the moment I apply the patch to the image, a message has appered:
THE IMAGE OF THE FILE SIZE IS INCORRECT, CONTINUE? YES / NO

My Rent a hero is Autoboot, maybe the message is for that? Or I can continue patching the game?

Thanks.