Error log

[INFO] [ForgeModLoader] Forge Mod Loader version 4.7.22.539 for Minecraft 1.4.7 loading
2013-02-03 16:38:14 [INFO] [STDOUT] 27 achievements
2013-02-03 16:38:14 [INFO] [STDOUT] 210 recipes
2013-02-03 16:38:14 [INFO] [STDOUT] Setting user: Player352, -
2013-02-03 16:38:14 [INFO] [STDERR] Client asked for parameter: server
2013-02-03 16:38:14 [INFO] [STDOUT] LWJGL Version: 2.4.2
2013-02-03 16:38:15 [INFO] [ForgeModLoader] Attempting early MinecraftForge initialization
2013-02-03 16:38:15 [INFO] [STDOUT] MinecraftForge v6.6.0.518 Initialized
2013-02-03 16:38:15 [INFO] [ForgeModLoader] MinecraftForge v6.6.0.518 Initialized
2013-02-03 16:38:15 [INFO] [STDOUT] Replaced 84 ore recipies
2013-02-03 16:38:15 [INFO] [ForgeModLoader] Completed early MinecraftForge initialization
2013-02-03 16:38:15 [INFO] [ForgeModLoader] Searching C:\Users\Michael\Documents\MCP\forge\mcp\jars\mods for mods
2013-02-03 16:38:17 [INFO] [ForgeModLoader] Forge Mod Loader has identified 6 mods to load
2013-02-03 16:38:17 [SEVERE] [ForgeModLoader] The mod AdventurePeripheral appears to have an invalid method annotation PostInit. This annotation can only apply to methods with argument types [class cpw.mods.fml.common.event.FMLPostInitializationEvent] -it will not be called
2013-02-03 16:38:17 [INFO] [ForgeModLoader] Configured a dormant chunk cache size of 0
2013-02-03 16:38:17 [INFO] [STDOUT] Starting up SoundSystem...
2013-02-03 16:38:18 [INFO] [STDOUT] Initializing LWJGL OpenAL
2013-02-03 16:38:18 [INFO] [STDOUT]     (The LWJGL binding of OpenAL.  For more information, see http://www.lwjgl.org)
2013-02-03 16:38:18 [INFO] [STDOUT] OpenAL initialized.
2013-02-03 16:38:18 [INFO] [STDOUT] Loading ComputerCraft v1.481 (rev 834)
2013-02-03 16:38:18 [INFO] [STDOUT] ComputerCraft: Searching for RedPowerLib...
2013-02-03 16:38:18 [INFO] [STDOUT] ComputerCraft: RedPowerLib not found.
2013-02-03 16:38:18 [INFO] [STDOUT] Loading CCTurtle v1.481 (rev 834)
2013-02-03 16:38:19 [INFO] [ForgeModLoader] Forge Mod Loader has successfully loaded 6 mods
2013-02-03 16:38:22 [INFO] [ForgeModLoader] Loading dimension 0 (New World) (net.minecraft.server.integrated.IntegratedServer@323b722b)
2013-02-03 16:38:22 [INFO] [ForgeModLoader] Loading dimension 1 (New World) (net.minecraft.server.integrated.IntegratedServer@323b722b)
2013-02-03 16:38:22 [INFO] [ForgeModLoader] Loading dimension -1 (New World) (net.minecraft.server.integrated.IntegratedServer@323b722b)
2013-02-03 16:38:23 [INFO] [STDOUT] ComputerCraft: Searching for RedPowerWorld...
2013-02-03 16:38:23 [INFO] [STDOUT] ComputerCraft: RedPowerWorld not found.
2013-02-03 16:38:23 [SEVERE] [ForgeModLoader] A TileEntity turtleex(dan200.turtle.shared.TileEntityTurtleExpanded) has thrown an exception during loading, its state cannot be restored. Report this to the mod author
java.lang.NullPointerException
	at dan200.turtle.shared.TileEntityTurtle.getRealSelf(TileEntityTurtle.java:2982)
	at dan200.turtle.shared.TileEntityTurtle.getWorld(TileEntityTurtle.java:336)
	at bubba.turtle.AdvUpgradeMethods.<init>(AdvUpgradeMethods.java:18)
	at bubba.turtle.AdvUpgrade.createPeripheral(AdvUpgrade.java:21)
	at dan200.turtle.shared.TileEntityTurtle.updatePeripheralUpgrades(TileEntityTurtle.java:881)
	at dan200.turtle.shared.TileEntityTurtle.readFromNBT(TileEntityTurtle.java:1119)
	at net.minecraft.tileentity.TileEntity.createAndLoadEntity(TileEntity.java:150)
	at net.minecraft.world.chunk.storage.AnvilChunkLoader.readChunkFromNBT(AnvilChunkLoader.java:418)
	at net.minecraft.world.chunk.storage.AnvilChunkLoader.checkedReadChunkFromNBT(AnvilChunkLoader.java:103)
	at net.minecraft.world.chunk.storage.AnvilChunkLoader.loadChunk(AnvilChunkLoader.java:83)
	at net.minecraft.world.gen.ChunkProviderServer.safeLoadChunk(ChunkProviderServer.java:182)
	at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:118)
	at net.minecraft.server.MinecraftServer.initialWorldChunkLoad(MinecraftServer.java:310)
	at net.minecraft.server.integrated.IntegratedServer.loadAllWorlds(IntegratedServer.java:84)
	at net.minecraft.server.integrated.IntegratedServer.startServer(IntegratedServer.java:101)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:458)
	at net.minecraft.server.ThreadMinecraftServer.run(ThreadMinecraftServer.java:16)
2013-02-03 16:38:30 [INFO] [ForgeModLoader] Unloading dimension 0
2013-02-03 16:38:30 [INFO] [ForgeModLoader] Unloading dimension -1
2013-02-03 16:38:30 [INFO] [ForgeModLoader] Unloading dimension 1
2013-02-03 16:38:31 [INFO] [STDOUT] Stopping!
2013-02-03 16:38:31 [INFO] [STDOUT] SoundSystem shutting down...
2013-02-03 16:38:31 [INFO] [STDOUT]     Author: Paul Lamb, www.paulscode.com