User blog comment:MPKnaub92/Happy Birthday Ara-boy!/@comment-5989815-20130723230903/@comment-5989815-20130724014343

Ahhh ok that's probably why: Chapter 3 isn't 100% fully english yet, and you might have downloaded the one with Cecil's adventure, so there's probably some weird japanese file in there causing your story to crash. If you just copy and paste another MGQ folder with chapter 1 and 2 (not 3) merged and run it from there, everything should be smooth sailing.

At least that's my opinion as to why it's crashing.