DW20 Pack, Crash Upon Loading

[BoredEngineer]

I seem to have trouble loading up the game. When I disable Biomes-O-Plenty V0.5.9.2 everything seems to work fine; but when I enable it, I can't even load up the game. Thanks for any help.

http://pastebin.com/Xew7mHyn

 

[ShneekeyTheLost]

2013-08-07 18:36:39 [INFO] [STDERR] java.lang.IllegalArgumentException: Slot 254 is already occupied by biomesoplenty.blocks.BlockBOPGeneric@41036dd2 when adding codechicken.enderstorage.common.BlockEnderStorage@481f1756

ID error. Check the Mod Pack Bugs forum.