21:18:58 [SEVERE] Could not pass event CHUNK_LOAD to NoLagg
java.lang.IllegalAccessError: Synchronized code got accessed from another thread: com.palmergames.bukkit.towny.tasks.TownClaim
        at com.all.bukkit.threadcheck.ThreadCheck.check(ThreadCheck.java:79)
        at com.bergerkiller.bukkit.nolagg.meta.WorldMetaData.get(WorldMetaData.java:49)
        at com.bergerkiller.bukkit.nolagg.meta.ChunkMetaData.get(ChunkMetaData.java:38)
        at com.bergerkiller.bukkit.nolagg.meta.ChunkMetaData.get(ChunkMetaData.java:35)
        at com.bergerkiller.bukkit.nolagg.NLWorldListener.onChunkLoad(NLWorldListener.java:24)
        at org.bukkit.plugin.java.JavaPluginLoader$52.execute(JavaPluginLoader.java:626)
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:58)
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:339)
        at net.minecraft.server.ChunkProviderServer.getChunkAt(ChunkProviderServer.java:92)
        at org.bukkit.craftbukkit.CraftWorld.getChunkAt(CraftWorld.java:101)
        at org.bukkit.craftbukkit.CraftWorld.getBlockAt(CraftWorld.java:69)
        at com.palmergames.bukkit.towny.object.PlotBlockData.getBlockArr(PlotBlockData.java:65)
        at com.palmergames.bukkit.towny.object.PlotBlockData.initialize(PlotBlockData.java:38)
        at com.palmergames.bukkit.towny.tasks.TownClaim.townClaim(TownClaim.java:138)
        at com.palmergames.bukkit.towny.tasks.TownClaim.run(TownClaim.java:72)