Stevescarts 2 crash while load

Failed to create block (BlockDistributor)
java.lang.IllegalArgumentException: Duplicate id: distributor
        at net.minecraft.tileentity.TileEntity.func_145826_a(TileEntity.java:43)

        at cpw.mods.fml.common.registry.GameRegistry.registerTileEntity(GameRegi
stry.java:264)
        at vswe.stevescarts.Blocks.ModBlocks.init(ModBlocks.java:83)
        at vswe.stevescarts.StevesCarts.preInit(StevesCarts.java:87)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContain
er.java:513)
        at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscribe
r.java:74)
        at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(Sy
nchronizedEventSubscriber.java:47)
        at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322)
        at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.jav
a:304)
        at com.google.common.eventbus.EventBus.post(EventBus.java:275)
        at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadContro
ller.java:208)
        at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadControll
er.java:187)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscribe
r.java:74)
        at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(Sy
nchronizedEventSubscriber.java:47)
        at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322)
        at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.jav
a:304)
        at com.google.common.eventbus.EventBus.post(EventBus.java:275)
        at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadControl
ler.java:118)
        at cpw.mods.fml.common.Loader.preinitializeMods(Loader.java:513)
        at cpw.mods.fml.server.FMLServerHandler.beginServerLoading(FMLServerHand
ler.java:88)
        at cpw.mods.fml.common.FMLCommonHandler.onServerStart(FMLCommonHandler.j
ava:313)
        at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(Dedicated
Server.java:117)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:387)
        at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)