It's probably because of the rom (I think one of the Rudolph patches breaks it), as the game also crashed when I tried to go there on No$GBA.
Have you tried checking if it still crashes without any patch? I believe the "no getting EXP ever" AP protection was defeated by AKAIO 1.8.
By the way, in case the database has eaten my last edit: I didn't get any crash after playing for more than two hours, after I tried the normal paper trick, so I guess that was the problem. I hope it was only something that simple.
Have you tried checking if it still crashes without any patch? I believe the "no getting EXP ever" AP protection was defeated by AKAIO 1.8.
By the way, in case the database has eaten my last edit: I didn't get any crash after playing for more than two hours, after I tried the normal paper trick, so I guess that was the problem. I hope it was only something that simple.