Just want to know if it is possible,cause i lost my sd card that had my brawl hacks in it,so just want to know if its possible or not.

I am having problems with riivolution,what my problem is that every time that i start a battle in brawl mode and select a stage it freezes,same thing happens in classic mode, adventure mode,event match,and stadium.what did i do wrong and how do i fix it. PLZ Help me put i NEED TO PLAY BRAWL AGAIN.