Hey guys! I just made a minecraft technic pack server, and I have build only 1 quarry, and thats all the machinery. When I start the server, there appears to be no loading errors. But when, or even before I start the server, it shows this error, and I cannot connect to the server anymore.

Exception
2012-01-16 15:31:10 [SEVERE] at buildcraft.api.EntityPassiveItem.toEntityItem(EntityPassiveItem.java:91)
2012-01-16 15:31:10 [SEVERE] at buildcraft.transport.PipeTransportItems.moveSolids(PipeTransportItems.java:216)
2012-01-16 15:31:10 [SEVERE] at buildcraft.transport.PipeTransportItems.updateEntity(PipeTransportItems.java:132)
2012-01-16 15:31:10 [SEVERE] at buildcraft.transport.Pipe.updateEntity(Pipe.java:98)
2012-01-16 15:31:10 [SEVERE] at buildcraft.transport.TileGenericPipe.l_(TileGenericPipe.java:99)
2012-01-16 15:31:10 [SEVERE] at net.minecraft.server.World.tickEntities(World.java:1171)
2012-01-16 15:31:10 [SEVERE] at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:524)
2012-01-16 15:31:10 [SEVERE] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:431)
2012-01-16 15:31:10 [SEVERE] at net.minecraft.server.ThreadServerApplication.run(SourceFile:457)
2012-01-16 15:31:10 [SEVERE] Unexpected exception
java.lang.NullPointerException
at buildcraft.api.EntityPassiveItem.toEntityItem(EntityPassiveItem.java:91)
at buildcraft.transport.PipeTransportItems.moveSolids(PipeTransportItems.java:216)
at buildcraft.transport.PipeTransportItems.updateEntity(PipeTransportItems.java:132)
at buildcraft.transport.Pipe.updateEntity(Pipe.java:98)
at buildcraft.transport.TileGenericPipe.l_(TileGenericPipe.java:99)
at net.minecraft.server.World.tickEntities(World.java:1171)
at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:524)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:431)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:457)
Yea, pretty annoying. It always says that. I tried deleting the known players, I tried a new world file. Idk whats happening. Please help! I would really appreciate it!