[HELP] Corrupt Hero Hall Collision Error

[Xytles]

Everytime I try to go to Corrupt Hero Hall there is a collision error I've got.
To be exact it is :
"loading err [GetCollisionBase] 30 2001 (null) undefine bin data try to be loaded"

Here is the picture : .

Kindly help me to fix it. Thanks!

[Sunny2Sweet]

Try to use a different etc.bin in data folder, also try to use a different collision.gem/gel file, and check world folder in 7-0 folder.