About a day or two after it was released I purchaced the Collectors Edition of Bravely Default. I've been playing for a while but have not been a high enough level to fight some of the Nemeses' i've recieved through streetpass. Just recently I've maxed out all my levels and jobs and decided to take down some of the higher level Nemeses' i've been saving. When I got arround tofighting Belphegor (Suggested Level 80) I started having some problems. Every time I attempt to fight him the game freezes and i get the notification: "An error has occurred forcing the software to restart" after a few turns. I have tried saving and starting the fight from different towns, i've restarted my whole system, i've removed and re-incerted the cartrage, i've even let it sit untouched for a day (perhaps leaving it on in sleep-mode for so long had caused it? apparently not). My system is up to date and my card has ample space available (over 25k blocks open). I even have a second of the same nemeses in my town (aquired from a different person on streetpass) and the result is the same. I'm not sure why this is happening but i'd really like to beat this guy so i can round out my encyclopedia entries.
Any and all help would be appreciated.