错误报告大致是这样写的：
PMDescription: Exception in server tick loop

java.lang.AbstractMethodError
        at rq.transferTo(Container.java:41)
        at org.bukkit.craftbukkit.v1_4_R1.event.CraftEventFactory.callInventoryOpenEvent(CraftEventFactory.java:498)
        at iq.a(EntityPlayerMP.java:759)
        at atomicstryker.minefactoryreloaded.common.blocks.BlockFactoryMachine.a(BlockFactoryMachine.java:103)
        at ir.a(ItemInWorldManager.java:560)
        at iv.a(NetServerHandler.java:908)
        at fk.a(Packet15Place.java:79)
        at cg.b(TcpConnection.java:467)
        at iv.d(NetServerHandler.java:222)
        at iw.b(NetworkListenThread.java:57)
        at ht.b(DedicatedServerListenThread.java:34)
        at net.minecraft.server.MinecraftServer.r(MinecraftServer.java:921)
        at ho.r(DedicatedServer.java:301)
        at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:797)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:684)
        at fy.run(ThreadMinecraftServer.java:16)
求解怎么破啊。。。

粗看一下，大概是mfr mod的问题，物品开启事件里面的问题，我没用过mfr，你检查下地图上mfr相关的设备，要么拆下来试试看