Can someone help me find what's wrong here?

I just downloaded the Pixelmon Island Paradise map, along with Custom NPCs mod and Big Trees mod

I tried reading through the crash report several times, but it's no use; I still can't read java :'(

 

 

 

Here's the report:

 

 

---- Minecraft Crash Report ----

// Don't do that.

 

Time: 7/6/14 6:32 PM

Description: Exception in server tick loop

 

java.lang.AbstractMethodError: packets.BattleHandler.eventFired(Lpixelmon/api/events/EventType;Lnet/minecraft/entity/player/EntityPlayer;[Ljava/lang/Object;)V

at pixelmon.api.events.PixelmonEventHandler.fireEvent(PixelmonEventHandler.java:20)

at pixelmon.comm.packetHandlers.RecieveModList.handlePacket(RecieveModList.java:26)

at pixelmon.comm.PacketManager.onPacketData(PacketManager.java:72)

at cpw.mods.fml.common.network.NetworkRegistry.handlePacket(NetworkRegistry.java:255)

at cpw.mods.fml.common.network.NetworkRegistry.handleCustomPacket(NetworkRegistry.java:245)

at cpw.mods.fml.common.network.FMLNetworkHandler.handlePacket250Packet(FMLNetworkHandler.java:85)

at net.minecraft.network.NetServerHandler.func_72501_a(NetServerHandler.java:1130)

at net.minecraft.network.packet.Packet250CustomPayload.func_73279_a(SourceFile:61)

at net.minecraft.network.MemoryConnection.func_74428_b(MemoryConnection.java:89)

at net.minecraft.network.NetServerHandler.func_72570_d(NetServerHandler.java:141)

at net.minecraft.network.NetworkListenThread.func_71747_b(NetworkListenThread.java:54)

at net.minecraft.server.integrated.IntegratedServerListenThread.func_71747_b(IntegratedServerListenThread.java:109)

at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:691)

at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:587)

at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:175)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:484)

at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:583)

 

 

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

---------------------------------------------------------------------------------------

 

-- System Details --

Details:

Minecraft Version: 1.6.4

Operating System: Windows Vista (x86) version 6.0

Java Version: 1.7.0_60, Oracle Corporation

Java VM Version: Java HotSpot Client VM (mixed mode), Oracle Corporation

Memory: 188414616 bytes (179 MB) / 337793024 bytes (322 MB) up to 1037959168 bytes (989 MB)

JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G

AABB Pool Size: 1637 (91672 bytes; 0 MB) allocated, 1523 (85288 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 v6.4.49.965 Minecraft Forge 9.11.1.965 Optifine OptiFine_1.6.4_HD_U_C6 8 mods loaded, 8 mods active

mcp{8.09} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

FML{6.4.49.965} [Forge Mod Loader] (minecraftforge-9.11.1.965.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

Forge{9.11.1.965} [Minecraft Forge] (minecraftforge-9.11.1.965.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

bigtrees{1.6.4} [bigTrees] (BigTrees-164-forge.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

customnpcs{1.6.4} [CustomNpcs] (CustomNPCs_1.6.2-1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

pixelmon{3.0.4} [Pixelmon] (Pixelmon 3.0.4) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

pokemart{1.0.1} [pokemart] (PokeMart) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

pokeradar{1.1.0} [pokeradar] (pokeradar.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

Profiler Position: N/A (disabled)

Vec3 Pool Size: 191 (10696 bytes; 0 MB) allocated, 143 (8008 bytes; 0 MB) used

Player Count: 1 / 8; [EntityPlayerMP['Nexina'/48, l='Pixelmon Paradise', x=-122.50, y=66.00, z=-32.50]]

Type: Integrated Server (map_client.txt)

Is Modded: Definitely; Client brand changed to 'fml,forge'

...But- What? API?

I'm kinda lost here. I'm not a coder or a mod expert or anything, just a casual gamer who thought that particular map looked really fun... Everything worked fine yesterday... I'm sorry for bothering you, I just wanted to play the game... thought you guys could help

Ugh, i'ts too late here to be working on this. I'm all frazzled! Maybe a good night's sleep will help..

Thanks for your help!

i'll come back if i find out any more info that might help -(yawn)- tomorrow... Zzz