Hacking Having problem with modified SSBB iso

[SuperSpaceMan230]

I've fixed this problem already, the problem was that i wasn't using the right code, i no longer need any help

So, im trying to replace files from my iso file to get mods to run in smash bros brawl, but whenever i select my modified character (pikachu), the game freezes, it still runs (animations and backgrounds are moving), but it wont let me use my wiimote at all, the music stops, and i have to force shutdown my wii. Here is some info so you guys can help me fix this

-Im modifying a ISO directly, im aware you can just use a ocarina code to change characters, but the method im using is only temporary
-Im launching it through configurable USB loader with a NTFS formated usb, i have already tried to run it in a WBFS usb, but the same problem occurs
-The iso file isnt broken or poorly ripped, ive tested it with Dolphin and the game ran fine without the problems mentioned avobe.
-The files i replaced were two of Pikachu's files. "FitPikachu.pac" and "FitPikachuMotionEtc.pac"
-The original unmodified version of the game doesnt have theese problems

If any of you guys can help me, please reply to this post.

PD: is there any way of checking logs of some kind so i can at least see the problem that happens? (This is just so i can see the problem more easily, but its okay if i can't do it)