Dungeon Crashes

I'm still early on into the game and I'm stuck on one part of "Evacuation Order". Whenever I try and enter the 'Kokujou Forest', it always crashes my game. It doesn't crash with any other dungeon. Any advice or help?
http://onigiri.cyberstep.com/_/forum/
http://onigiri.cyberstep.com/_/forum/viewtopic.php?f=15&t=9138
The Demon Slayer wrote:Go to my computer >> c >> cyberstep >> (here delete the folder [Onigiri_US])
and then just re-download the game