server wont start up

[butwanna]

[sEVERE]at cpw.mods.fml.server.FMLBukkitHandler.onLoadComplete(FMLBukkitHandler.java:142)

2012-08-09 03:06:47 [sEVERE]at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:176)

2012-08-09 03:06:47 [sEVERE]at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:438)

2012-08-09 03:06:47 [sEVERE]at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

2012-08-09 03:06:47 [sEVERE] Unexpected exception

java.lang.IllegalArgumentException: Slot 216 is already occupied by eloraam.machine.BlockMachinePanel@6f68ad51 when adding dan200.turtle.shared.BlockTurtle@414ad9fb

at net.minecraft.server.Block.<init>(Block.java:181)

at net.minecraft.server.BlockContainer.<init>(BlockContainer.java:6)

at dan200.computer.shared.BlockComputerBase.<init>(BlockComputerBase.java:24)

at dan200.turtle.shared.BlockTurtle.<init>(BlockTurtle.java:24)

at net.minecraft.server.mod_CCTurtle.modsLoaded(mod_CCTurtle.java:44)

at cpw.mods.fml.common.modloader.ModLoaderModContainer.postInit(ModLoaderModContainer.java:357)

at cpw.mods.fml.common.Loader.postModInit(Loader.java:280)

at cpw.mods.fml.common.Loader.initializeMods(Loader.java:619)

at cpw.mods.fml.server.FMLBukkitHandler.onLoadComplete(FMLBukkitHandler.java:142)

at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:176)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:438)

at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

tried to allow quarries and messed something up. not sure where this goes hope its here dont just close my thread tell me where it goes instead. this topic says tekkit help and that is what i am using