9:10:15 [SEVERE] t: Exception while updating neighbours
19:10:15 [SEVERE] 	at yc.m(World.java:1127)
19:10:15 [SEVERE] 	at yc.h(World.java:1071)
19:10:15 [SEVERE] 	at yc.f(World.java:1015)
19:10:15 [SEVERE] 	at yc.e(World.java:973)
19:10:15 [SEVERE] 	at org.bukkit.craftbukkit.v1_4_R1.block.CraftBlock.setTypeId(CraftBlock.java:109)
19:10:15 [SEVERE] 	at com.sk89q.worldedit.bukkit.BukkitWorld.setBlockType(BukkitWorld.java:264)
19:10:15 [SEVERE] 	at com.sk89q.worldedit.EditSession.rawSetBlock(EditSession.java:234)
19:10:15 [SEVERE] 	at net.coreprotect.worldedit.CoreProtectEditSession.rawSetBlock(CoreProtectEditSession.java:35)
19:10:15 [SEVERE] 	at com.sk89q.worldedit.EditSession.flushQueue(EditSession.java:707)
19:10:15 [SEVERE] 	at com.sk89q.worldedit.WorldEdit.handleCommand(WorldEdit.java:1409)
19:10:15 [SEVERE] 	at com.sk89q.worldedit.bukkit.WorldEditPlugin.onCommand(WorldEditPlugin.java:247)
19:10:15 [SEVERE] 	at com.sk89q.bukkit.util.DynamicPluginCommand.execute(DynamicPluginCommand.java:52)
19:10:15 [SEVERE] 	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:186)
19:10:15 [SEVERE] 	at org.bukkit.craftbukkit.v1_4_R1.CraftServer.dispatchCommand(CraftServer.java:549)
19:10:15 [SEVERE] 	at iv.d(NetServerHandler.java:1396)
19:10:15 [SEVERE] 	at iv.chat(NetServerHandler.java:1264)
19:10:15 [SEVERE] 	at iv.a(NetServerHandler.java:1188)
19:10:15 [SEVERE] 	at cu.a(Packet3Chat.java:59)
19:10:15 [SEVERE] 	at cg.b(TcpConnection.java:467)
19:10:15 [SEVERE] 	at iv.d(NetServerHandler.java:220)
19:10:15 [SEVERE] 	at iw.b(NetworkListenThread.java:57)
19:10:15 [SEVERE] 	at ht.b(DedicatedServerListenThread.java:34)
19:10:15 [SEVERE] 	at net.minecraft.server.MinecraftServer.r(MinecraftServer.java:910)
19:10:15 [SEVERE] 	at ho.r(DedicatedServer.java:309)
19:10:15 [SEVERE] 	at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:786)
19:10:15 [SEVERE] 	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:673)
19:10:15 [SEVERE] 	at fy.run(ThreadMinecraftServer.java:16)
19:10:15 [SEVERE] Caused by: java.lang.NullPointerException
19:10:15 [SEVERE] 	at buildcraft.transport.BlockGenericPipe.a(BlockGenericPipe.java:352)
19:10:15 [SEVERE] 	at yc.m(World.java:1108)
19:10:15 [SEVERE] 	... 26 more