Game crashes yet not found the exact reason

[Yeeeho]

My character is currently in level 121 chaotic mine.
And for some reason the game crashed while I explored the first floor of the dungeon.

here's the error code
HspError 19 WinError 6 Line -1 Ver 6150 Mode 0
Message (JP): 0궳룣럁궢귏궢궫
Message (EN): Divided by zero
efId 759 efP 210 Area 451/121
ci 111#61 ti 0#434 cc 101#819 tc 109#571 rc 127#56
3. main_init:Begin ct:245
2. main_init:End ct:0

1. pc_turn_init ct:0
2. turn_end:pc ct:0