Crash

---- Minecraft Crash Report ----
// Don't be sad. I'll do better next time, I promise!

Time: 07/04/13 11:24 AM
Description: Failed to start game

java.lang.RuntimeException: Duplicate stat id: "Unknown stat" and "achievement.achFlower" at id 5245927
	at net.minecraft.stats.StatBase.func_75971_g(SourceFile:32)
	at net.minecraft.stats.Achievement.func_75985_c(SourceFile:51)
	at tdwp_ftw.biomesop.mod_BiomesOPlenty.load(mod_BiomesOPlenty.java:678)
	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(FMLModContainer.java:515)
	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.EventHandler.handleEvent(EventHandler.java:74)
	at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)
	at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314)
	at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)
	at com.google.common.eventbus.EventBus.post(EventBus.java:267)
	at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:165)
	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.EventHandler.handleEvent(EventHandler.java:74)
	at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)
	at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314)
	at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)
	at com.google.common.eventbus.EventBus.post(EventBus.java:267)
	at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:98)
	at cpw.mods.fml.common.Loader.initializeMods(Loader.java:690)
	at cpw.mods.fml.client.FMLClientHandler.finishMinecraftLoading(FMLClientHandler.java:206)
	at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:444)
	at net.minecraft.client.MinecraftAppletImpl.func_71384_a(SourceFile:56)
	at net.minecraft.client.Minecraft.run(Minecraft.java:729)
	at java.lang.Thread.run(Unknown Source)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- System Details --
Details:
	Minecraft Version: 1.5.1
	Operating System: Windows 7 (x86) version 6.1
	Java Version: 1.7.0_17, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
	Memory: 346773592 bytes (330 MB) / 519110656 bytes (495 MB) up to 1037959168 bytes (989 MB)
	JVM Flags: 2 total; -Xms512m -Xmx1024m
	AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	Suspicious classes: FML and Forge are installed
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	FML: MCP v7.44 FML v5.1.16.639 Minecraft Forge 7.7.1.639 8 mods loaded, 8 mods active
	mcp [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized
	FML [Forge Mod Loader] (coremods) Unloaded->Constructed->Pre-initialized->Initialized
	Forge [Minecraft Forge] (coremods) Unloaded->Constructed->Pre-initialized->Initialized
	jammyfurniture [Jammy Furniture Mod] (1.5.1_Jammy_Furniture_Mod_V4.2.zip) Unloaded->Constructed->Pre-initialized->Initialized
	mod_AnimalBikes [mod_AnimalBikes] (Animal-Bikes-Mod-Modloader-1.5.1.zip) Unloaded->Constructed->Pre-initialized->Initialized
	BiomesOPlenty [Biomes O' Plenty] (Biomes-O-Plenty-Mod-1.5.1.zip) Unloaded->Constructed->Pre-initialized->Errored
	MCA [Minecraft Comes Alive] (mca v3.3.0b2.zip) Unloaded->Constructed->Pre-initialized->Initialized
	quicksand_mod [Quicksand Mod] (Quicksand-Mod-1.5.1.zip) Unloaded->Constructed->Pre-initialized->Initialized
	LWJGL: 2.4.2
	OpenGL: Intel(R) HD Graphics Family GL version 3.0.0 - Build 8.15.10.2342, Intel
	Is Modded: Definitely; Client brand changed to 'fml,forge'
	Type: Client (map_client.txt)
	Texture Pack: Default
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: ~~ERROR~~ NullPointerException: null