Did you add new/change codes in this region:
ORG $6677BC
TurnBasedEvents:
TURN 0x0 label9 [1,0] 0x0
TURN 0x0 label10 [2,0] 0x0
CHAR
CharacterBasedEvents:
CHAR 0x5 label11 [0x1,0x18]
CHAR 0x5 label11 [0x18,0x1]
CHAR
LocationBasedEvents:
SHOP 0x0 label12 [7,9] 0x14
SHOP 0x0 label13 [6,1] 0x13
VILL 0x0 label14 [3,4] 0xE
LOCA 0x0 [3,3] 0x1D
LOCA 0x0 label15 [6,7] 0xE
LOCA 0x0 label16 [0,4] 0xE
LOCA 0x0 label17 [5,7] 0xE
LOCA 0x3 [16,3] 0xF
CHAR
MiscBasedEvents:
AFEV 0x0 label18 0x65
CHAR
PointerList:
POIN TurnBasedEvents
POIN CharacterBasedEvents
POIN LocationBasedEvents
POIN MiscBasedEvents
POIN EnemyUnits AllyUnits
POIN EndingScene