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org.bukkit.event.EventException at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:310)[spigot.jar:git-Spigot-5391d73-0ebb9c7] at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)[spigot.jar:git-Spigot-5391d73-0ebb9c7] at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502)[spigot.jar:git-Spigot-5391d73-0ebb9c7] at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487)[spigot.jar:git-Spigot-5391d73-0ebb9c7] at org.bukkit.craftbukkit.v1_10_R1.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:231)[spigot.jar:git-Spigot-5391d73-0ebb9c7] at net.minecraft.server.v1_10_R1.PlayerInteractManager.a(PlayerInteractManager.java:492)[spigot.jar:git-Spigot-5391d73-0ebb9c7] at net.minecraft.server.v1_10_R1.PlayerConnection.a(PlayerConnection.java:890)[spigot.jar:git-Spigot-5391d73-0ebb9c7] at net.minecraft.server.v1_10_R1.PacketPlayInUseItem.a(SourceFile:55)[spigot.jar:git-Spigot-5391d73-0ebb9c7] at net.minecraft.server.v1_10_R1.PacketPlayInUseItem.a(SourceFile:11)[spigot.jar:git-Spigot-5391d73-0ebb9c7] at net.minecraft.server.v1_10_R1.PlayerConnectionUtils$1.run(SourceFile:13)[spigot.jar:git-Spigot-5391d73-0ebb9c7] at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)[?:1.8.0_91] at java.util.concurrent.FutureTask.run(Unknown Source)[?:1.8.0_91] at net.minecraft.server.v1_10_R1.SystemUtils.a(SourceFile:45)[spigot.jar:git-Spigot-5391d73-0ebb9c7] at net.minecraft.server.v1_10_R1.MinecraftServer.D(MinecraftServer.java:733)[spigot.jar:git-Spigot-5391d73-0ebb9c7] at net.minecraft.server.v1_10_R1.DedicatedServer.D(DedicatedServer.java:399)[spigot.jar:git-Spigot-5391d73-0ebb9c7] at net.minecraft.server.v1_10_R1.MinecraftServer.C(MinecraftServer.java:672)[spigot.jar:git-Spigot-5391d73-0ebb9c7] at net.minecraft.server.v1_10_R1.MinecraftServer.run(MinecraftServer.java:571)[spigot.jar:git-Spigot-5391d73-0ebb9c7] at java.lang.Thread.run(Unknown Source)[?:1.8.0_91]Caused by: java.lang.IllegalArgumentException: Name cannot be null at org.apache.commons.lang.Validate.notNull(Validate.java:192)[spigot.jar:git-Spigot-5391d73-0ebb9c7] at org.bukkit.craftbukkit.v1_10_R1.CraftServer.getWorld(CraftServer.java:1023)[spigot.jar:git-Spigot-5391d73-0ebb9c7] at org.bukkit.Bukkit.getWorld(Bukkit.java:500)[spigot.jar:git-Spigot-5391d73-0ebb9c7] at me.sudoman281.chestTreasure.Listeners.onPlayerInteract(Listeners.java:47)[?:?] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)[?:1.8.0_91] at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)[?:1.8.0_91] at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)[?:1.8.0_91] at java.lang.reflect.Method.invoke(Unknown Source)[?:1.8.0_91] at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306)[spigot.jar:git-Spigot-5391d73-0ebb9c7] ... 17 more