RexOnARampage

So, i get the same message whenever i start up minecraft. When it shows mojang's logo, it stops responding, then crashes. Here is the crash log~~~ ---- Minecraft Crash Report ---- // I let you down. Sorry Time: 24/12/13 5:36 PM Description: Initializing game java.lang.NoClassDefFoundError: Ldrzhark/customspawner/CustomSpawner; at java.lang.Class.getDeclaredFields0(Native Method) at java.lang.Class.privateGetDeclaredFields(Unknown Source) at java.lang.Class.getDeclaredField(Unknown Source) at cpw.mods.fml.common.ProxyInjector.inject(ProxyInjector.java:43) at cpw.mods.fml.common.FMLModContainer.constructMod(FMLModContainer.java:524) 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:313) 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.sendEventToModContainer(LoadController.java:201) at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:181) 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:313) 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:112) at cpw.mods.fml.common.Loader.loadMods(Loader.java:511) at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:183) at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:473) at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:808) at net.minecraft.client.main.Main.main(SourceFile:101) 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 net.minecraft.launchwrapper.Launch.launch(Launch.java:131) at net.minecraft.launchwrapper.Launch.main(Launch.java:27) Caused by: java.lang.ClassNotFoundException: drzhark.customspawner.CustomSpawner at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:186) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) ... 37 more Caused by: java.lang.NullPointerException at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:178) ... 39 more A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Stacktrace: at java.lang.Class.getDeclaredFields0(Native Method) at java.lang.Class.privateGetDeclaredFields(Unknown Source) at java.lang.Class.getDeclaredField(Unknown Source) at cpw.mods.fml.common.ProxyInjector.inject(ProxyInjector.java:43) at cpw.mods.fml.common.FMLModContainer.constructMod(FMLModContainer.java:524) 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:313) 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.sendEventToModContainer(LoadController.java:201) at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:181) 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:313) 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:112) at cpw.mods.fml.common.Loader.loadMods(Loader.java:511) at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:183) at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:473) -- Initialization -- Details: Stacktrace: at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:808) at net.minecraft.client.main.Main.main(SourceFile:101) 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 net.minecraft.launchwrapper.Launch.launch(Launch.java:131) at net.minecraft.launchwrapper.Launch.main(Launch.java:27) -- System Details -- Details: Minecraft Version: 1.6.4 Operating System: Windows 7 (amd64) version 6.1 Java Version: 1.6.0_20, Sun Microsystems Inc. Java VM Version: Java HotSpot 64-Bit Server VM (mixed mode), Sun Microsystems Inc. Memory: 57539648 bytes (54 MB) / 164331520 bytes (156 MB) up to 1037959168 bytes (989 MB) JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G 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 v8.11 FML v6.4.38.942 Minecraft Forge 9.11.1.942 8 mods loaded, 8 mods active mcp{8.09} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed FML{6.4.38.942} [Forge Mod Loader] (minecraftforge-9.11.1.942.jar) Unloaded->Constructed Forge{9.11.1.942} [Minecraft Forge] (minecraftforge-9.11.1.942.jar) Unloaded->Constructed CodeChickenCore{0.9.0.7} [CodeChicken Core] (minecraft.jar) Unloaded->Constructed DamageIndicatorsMod{2.9.2.0} [Damage Indicators] (1.6.4 DamageIndicatorsv2.9.2.0.zip) Unloaded->Constructed craftguide{1.5.2} [CraftGuide] (CraftGuide-1.6.7.4.zip) Unloaded->Constructed MoCreatures{6.0.1} [DrZhark's Mo'Creatures Mod] (DrZharks MoCreatures Mod v6.0.1.zip) Unloaded weaponmod{1.6.2 v1.13.6} [balkon's WeaponMod] (WeaponMod.zip) Unloaded Launched Version: 1.6.4-Forge9.11.1.942 LWJGL: 2.9.0 OpenGL: AMD M880G with ATI Mobility Radeon HD 4250 GL version 3.3.10179 Compatibility Profile Context, ATI Technologies Inc. Is Modded: Definitely; Client brand changed to 'fml,forge' Type: Client (map_client.txt) Resource Pack: Default Current Language: English (US) Profiler Position: N/A (disabled) Vec3 Pool Size: ~~ERROR~~ NullPointerException: null PLEASE HELP!!!