[1.106] [SMP Only] Quantum Helm Poison Crash.

    We had the same kind of error twice on different servers:

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    // Hi. I'm Minecraft, and I'm a crashaholic.

    Time: 17-9-12 21:13

    Description: Exception in server tick loop

    java.lang.NoSuchMethodError: og.n(I)V
    at ic2.common.
    ItemArmorQuantumSuit.onTick(ItemArmorQuantumSuit.java:92)
    at ic2.common.IC2.tickStart(IC2.java:1520)
    at cpw.mods.fml.common.SingleIntervalHandler.tickStart(SingleIntervalHandler.java:16)

    at cpw.mods.fml.common.FMLCommonHandler.tickStart(FMLCommonHandler.java:107)
    at cpw.mods.fml.common.FMLCommonHandler.onPlayerPreTick(FMLCommonHandler.java:385)
    at og.h_(EntityPlayer.java:227)
    at gu.g(EntityPlayerMP.java:227)

    at gz.a(NetServerHandler.java:257)
    at cx.a(SourceFile:136)
    at bb.b(TcpConnection.java:438)
    at gz.d(NetServerHandler.java:72)
    at ha.b(NetworkListenThread.java:55)
    at fx.b(SourceFile:30)

    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:660)
    at ft.q(DedicatedServer.java:241)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:575)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:481)

    at ep.run(SourceFile:539)

    Relevant Details:
    - Minecraft Version: 1.3.2
    - Operating System: Windows 7 (amd64) version 6.1
    - Java Version: 1.7.0_03, Oracle Corporation
    - Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation

    - Memory: 610961336 bytes (582 MB) / 714735616 bytes (681 MB) up to 954466304 bytes (910 MB)
    - JVM Flags: 2 total; -Xmx1024m -Xms512m
    - FML: ~ERROR~ NullPointerException: null
    - Is Modded: Definitely; 'forge,fml'

    - Profiler Position: N/A (disabled)
    - Player Count: 2 / 20;
    [gu['xxxx'/483, l='world', x=-127,08, y=70,79, z=798,69],
    gu['Regelneef'/564, l='world', x=-190,99, y=113,86, z=817,89]]

    The funny thing is that for about the first 10 minutes there were no problems and then poof server crash.
    We were both in creative (server was set on survival), the first time we were just flying around and placing Reactor chambers, the second time we just detonated a nuke.

    The other mods on the server were:
    - Mystcraft
    - Buildcraft pre7
    - Forestry 1.502
    - Jammy furniture Beta 4.3
    - Useful food
    - NEI
    - Twilight forest
    - Clay soldiers