我安裝了Forestry MOD 單人沒問題  多人也可以擺放物件不談窗
但進入遊戲後 東西出來了 卻沒有功能
ˋ只要一通電就會出現下面的訊息

我的版本是1.1R4
請問我該怎麼設定呢?



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2012-04-03 09:45:51 [SEVERE] Could not pass event org.bukkit.event.block.BlockPlaceEvent to xAuth
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$103.execute(JavaPluginLoader.java:1026)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:61)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:460)
    at org.bukkit.craftbukkit.event.CraftEventFactory.callBlockPlaceEvent(CraftEventFactory.java:109)
    at forestry.cultivation.Planter.fillBlock(Planter.java:637)
    at forestry.cultivation.Planter.maintainSoil(Planter.java:428)
    at forestry.cultivation.Planter.doWork(Planter.java:338)
    at forestry.TileMachine.doWork(TileMachine.java:196)
    at buildcraft.api.PowerProvider.update(PowerProvider.java:52)
    at forestry.TileForestry.l_(TileForestry.java:64)
    at forestry.TileMachine.l_(TileMachine.java:93)
    at net.minecraft.server.World.tickEntities(World.java:1182)
    at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:534)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:441)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:465)
Caused by: java.lang.reflect.InvocationTargetException
    at sun.reflect.GeneratedMethodAccessor81.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$103.execute(JavaPluginLoader.java:1024)
    ... 14 more
Caused by: java.lang.NullPointerException
    at com.cypherx.xauth.plugins.xPermissions.has(xPermissions.java:57)
    at com.cypherx.xauth.PlayerManager.isRestricted(PlayerManager.java:203)
    at com.cypherx.xauth.listeners.xAuthBlockListener.onBlockPlace(xAuthBlockListener.java:34)
    ... 18 more

目前還是無解嗎.....?