This can't be fixed but can someone explain why my game is freezing

[N64killer]

So some days/weeks ago. I was playing brawl without my sd card for the first time since it broke and i was going to set "my music" setting back to they were before the hacks but when i selected battlefield it froze. why is that?

[Niar_Himself]

'cause you used Alloys or Independant Pokémons without the "Don't wreck my music" code, the only fix is starting a new game.

[Blue Vixen]

Yeah that happens because after you use the Alloys, the game saves on strange locations, the only fix is deleting the save data.

[N64killer]

^ that was one of the things i thought it could of been, but i didn't think the code had something to do with save data. In case i finally do buy a new sd card i could just put the code on again and everything would be fine again right?   

[Gamma Ridley]

Try using one of these. The Battlefield one specifically, if that's the only one that freezes.