Помогите Странный краш при старте арены

Плагин Minigames. Всё было отлично, после пересборки клиента при старте боя на любой арене - краш клиента. Пробовал создать арену с 0 - результат тот же. При 5 попытке - всё работает. Вернул бэкап всех арен - краш.
Прошу помощи. Видно чего-то в клиенте не хватает.

Код:

Time: 21.08.13 16:27
Description: Exception in world tick
 
java.lang.NoSuchFieldError: b
    at net.minecraft.client.multiplayer.NetClientHandler.func_96436_a(NetClientHandler.java:1626)
    at net.minecraft.network.packet.Packet206SetObjective.func_73279_a(SourceFile:43)
    at net.minecraft.network.TcpConnection.func_74428_b(TcpConnection.java:461)
    at net.minecraft.client.multiplayer.NetClientHandler.func_72551_d(NetClientHandler.java:266)
    at net.minecraft.client.multiplayer.WorldClient.func_72835_b(WorldClient.java:94)
    at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1862)
    at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:835)
    at net.minecraft.client.Minecraft.run(Minecraft.java:760)
    at java.lang.Thread.run(Unknown Source)
 
 
A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------
 
-- Head --
Stacktrace:
    at net.minecraft.client.multiplayer.NetClientHandler.func_96436_a(NetClientHandler.java:1626)
    at net.minecraft.network.packet.Packet206SetObjective.func_73279_a(SourceFile:43)
    at net.minecraft.network.TcpConnection.func_74428_b(TcpConnection.java:461)
    at net.minecraft.client.multiplayer.NetClientHandler.func_72551_d(NetClientHandler.java:266)
 
-- Affected level --
Details:
    Level name: MpServer
    All players: 3 total; [EntityClientPlayerMP['Meowt'/75923, l='MpServer', x=-27,50, y=69,62, z=-114,60], EntityOtherPlayerMP['player'/76609, l='MpServer', x=-21,38, y=69,00, z=-86,94], EntityOtherPlayerMP['Raptor'/2084, l='MpServer', x=-21,50, y=69,00, z=-101,56]]
    Chunk stats: MultiplayerChunkCache: 169
    Level seed: 0
    Level generator: ID 00 - default, ver 1. Features enabled: false
    Level generator options:
    Level spawn location: World: (-136,64,256), Chunk: (at 8,4,0 in -9,16; contains blocks -144,0,256 to -129,255,271), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
    Level time: 57877540 game time, 61761629 day time
    Level dimension: 0
    Level storage version: 0x00000 - Unknown?
    Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
    Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false
    Forced entities: 13 total; [EntityOtherPlayerMP['player'/76609, l='MpServer', x=-21,38, y=69,00, z=-86,94], EntityOtherPlayerMP['player'/76609, l='MpServer', x=-21,38, y=69,00, z=-86,94], EntityOtherPlayerMP['Lolowka'/34136, l='MpServer', x=-40,01, y=68,00, z=-151,21], EntityItemFrame['entity.ItemFrame.name'/75935, l='MpServer', x=-80,50, y=69,50, z=-90,94], EntityItemFrame['entity.ItemFrame.name'/75927, l='MpServer', x=-35,50, y=69,50, z=-59,94], EntityItemFrame['entity.ItemFrame.name'/75926, l='MpServer', x=-79,50, y=69,50, z=-90,94], EntityItemFrame['entity.ItemFrame.name'/75925, l='MpServer', x=-14,06, y=69,50, z=-89,50], EntityItemFrame['entity.ItemFrame.name'/75924, l='MpServer', x=-14,06, y=69,50, z=-99,50], EntityItemFrame['entity.ItemFrame.name'/75936, l='MpServer', x=-81,50, y=69,50, z=-90,94], EntityOtherPlayerMP['player'/76609, l='MpServer', x=-21,38, y=69,00, z=-86,94], EntityOtherPlayerMP['Raptor'/2084, l='MpServer', x=-21,50, y=69,00, z=-101,56], EntityOtherPlayerMP['Raptor'/2084, l='MpServer', x=-21,50, y=69,00, z=-101,56], EntityClientPlayerMP['Meowt'/75923, l='MpServer', x=-27,50, y=69,62, z=-114,60]]
    Retry entities: 0 total; []
Stacktrace:
    at net.minecraft.client.multiplayer.WorldClient.func_72914_a(WorldClient.java:441)
    at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1875)
    at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:835)
    at net.minecraft.client.Minecraft.run(Minecraft.java:760)
    at java.lang.Thread.run(Unknown Source)

 

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