i tried redownloading it, but it still crashing
hmm...try and make a backup of ALL of the brawl hacks on your sd car, then delete them all of the sd, and put only the stage in. with no other hacks. if it stops freexing after that, then gradually put in a few of the hacks back into your card at a time, and testing it out every cople of files you put on the sd card.
I had to do this once, and it worked for me.