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So I installed a couple mods and they were working fine then one day this weird update came up but its only when i spawn and try to choose my Pixelmon or i try to call one out.. Please help
The crash says ( file:///E:/Users/Maka-Maka/Desktop/crash-2013-06-16_10.18.23-server.txt and that says " ---- Minecraft Crash Report ----
// I let you down. Sorry

Time: 6/16/13 10:18 AM
Description: Ticking memory connection

java.lang.NullPointerException
at pixelmon.entities.pixelmon.stats.Level.getExpForLevel(Level.java:83)
at pixelmon.entities.pixelmon.stats.Level.setLevel(Level.java:66)
at pixelmon.comm.packetHandlers.ChooseStarter.handlePacket(ChooseStarter.java:31)
at pixelmon.comm.PacketHandler.onPacketData(PacketHandler.java:55)
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:84)
at net.minecraft.network.NetServerHandler.func_72501_a(NetServerHandler.java:1098)
at net.minecraft.network.packet.Packet250CustomPayload.func_73279_a(SourceFile:59)
at net.minecraft.network.MemoryConnection.func_74428_b(MemoryConnection.java:89)
at net.minecraft.network.NetServerHandler.func_72570_d(NetServerHandler.java:134)
at net.minecraft.network.NetworkListenThread.func_71747_b(NetworkListenThread.java:53)
at net.minecraft.server.integrated.IntegratedServerListenThread.func_71747_b(IntegratedServerListenThread.java:109)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:677)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:573)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:127)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:470)
at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:573)


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

-- System Details --
Details:
Minecraft Version: 1.5.2
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.6.0_26, Sun Microsystems Inc.
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Sun Microsystems Inc.
Memory: 384776552 bytes (366 MB) / 663093248 bytes (632 MB) up to 954466304 bytes (910 MB)
JVM Flags: 2 total; -Xms512m -Xmx1024m
AABB Pool Size: 1821 (101976 bytes; 0 MB) allocated, 1194 (66864 bytes; 0 MB) used
Suspicious classes: FML and Forge are installed
IntCache: cache: 0, tcache: 0, allocated: 1, tallocated: 63
FML: MCP v7.51 FML v5.2.23.737 Minecraft Forge 7.8.1.737 9 mods loaded, 9 mods active
mcp{7.51} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
FML{5.2.23.737} [Forge Mod Loader] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Forge{7.8.1.737} [Minecraft Forge] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
mod_bspkrsCore{v2.08(1.5.2)} [bspkrsCore] ([1.5.2]bspkrsCorev2.08.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
TreeCapitator{Forge 1.5.2.r01} [TreeCapitator] ([1.5.2]TreeCapitator.Forge.1.5.2.r01.Uni.CoreMod.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
mod_ReiMinimap{v3.3_06 [1.5.2]} [mod_ReiMinimap] ([1.5.2]ReiMinimap_v3.3_06.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Backpack{1.9.11} [Backpack] (backpack-1.9.11-1.5.2.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
craftguide{1.5.2} [CraftGuide] (CraftGuide-1.6.7.2.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Pixelmon{2.2} [Pixelmon] (Pixelmon 2.2.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Profiler Position: N/A (disabled)
Vec3 Pool Size: 94 (5264 bytes; 0 MB) allocated, 77 (4312 bytes; 0 MB) used
Player Count: 1 / 8; [EntityPlayerMP['paintedlake'/237, l='New World', x=166.50, y=74.00, z=264.50]]
Type: Integrated Server (map_client.txt)
Is Modded: Definitely; Client brand changed to 'fml,forge' " )
"



Minecraft has crashed!
----------------------

Minecraft has stopped running because it encountered a problem; Ticking memory connection

A full error report has been saved to E:\Users\Maka-Maka\AppData\Roaming\.minecraft\crash-reports\crash-2013-06-16_10.18.23-server.txt - Please include a copy of that file (Not this screen!) if you report this crash to anyone; without it, they will not be able to help fix the crash



--- BEGIN ERROR REPORT 5fd90e7 --------
Full report at:
E:\Users\Maka-Maka\AppData\Roaming\.minecraft\crash-reports\crash-2013-06-16_10.18.23-server.txt
Please show that file to Mojang, NOT just this screen!

Generated 6/16/13 10:18 AM

-- System Details --
Details:
Minecraft Version: 1.5.2
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.6.0_26, Sun Microsystems Inc.
Java VM Version: Java HotSpot™ 64-Bit Server VM (mixed mode), Sun Microsystems Inc.
Memory: 384776552 bytes (366 MB) / 663093248 bytes (632 MB) up to 954466304 bytes (910 MB)
JVM Flags: 2 total; -Xms512m -Xmx1024m
AABB Pool Size: 1821 (101976 bytes; 0 MB) allocated, 1194 (66864 bytes; 0 MB) used
Suspicious classes: FML and Forge are installed
IntCache: cache: 0, tcache: 0, allocated: 1, tallocated: 63
FML: MCP v7.51 FML v5.2.23.737 Minecraft Forge 7.8.1.737 9 mods loaded, 9 mods active
mcp{7.51} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
FML{5.2.23.737} [Forge Mod Loader] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Forge{7.8.1.737} [Minecraft Forge] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
mod_bspkrsCore{v2.08(1.5.2)} [bspkrsCore] ([1.5.2]bspkrsCorev2.08.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
TreeCapitator{Forge 1.5.2.r01} [TreeCapitator] ([1.5.2]TreeCapitator.Forge.1.5.2.r01.Uni.CoreMod.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
mod_ReiMinimap{v3.3_06 [1.5.2]} [mod_ReiMinimap] ([1.5.2]ReiMinimap_v3.3_06.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Backpack{1.9.11} [Backpack] (backpack-1.9.11-1.5.2.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
craftguide{1.5.2} [CraftGuide] (CraftGuide-1.6.7.2.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Pixelmon{2.2} [Pixelmon] (Pixelmon 2.2.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Profiler Position: N/A (disabled)
Vec3 Pool Size: 94 (5264 bytes; 0 MB) allocated, 77 (4312 bytes; 0 MB) used
Player Count: 1 / 8; [EntityPlayerMP['paintedlake'/237, l='New World', x=166.50, y=74.00, z=264.50]]
Type: Integrated Server (map_client.txt)
Is Modded: Definitely; Client brand changed to 'fml,forge'

java.lang.NullPointerException
at pixelmon.entities.pixelmon.stats.Level.getExpForLevel(Level.java:83)
at pixelmon.entities.pixelmon.stats.Level.setLevel(Level.java:66)
at pixelmon.comm.packetHandlers.ChooseStarter.handlePacket(ChooseStarter.java:31)
at pixelmon.comm.PacketHandler.onPacketData(PacketHandler.java:55)
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:84)
at net.minecraft.network.NetServerHandler.func_72501_a(NetServerHandler.java:1098)
at net.minecraft.network.packet.Packet250CustomPayload.func_73279_a(SourceFile:59)
at net.minecraft.network.MemoryConnection.func_74428_b(MemoryConnection.java:89)
at net.minecraft.network.NetServerHandler.func_72570_d(NetServerHandler.java:134)
at net.minecraft.network.NetworkListenThread.func_71747_b(NetworkListenThread.java:53)
at net.minecraft.server.integrated.IntegratedServerListenThread.func_71747_b(IntegratedServerListenThread.java:109)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:677)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:573)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:127)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:470)
at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:573)
--- END ERROR REPORT b56449c ----------


"

Here you go