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org.bukkit.command.CommandException: Unhandled exception executing command 'oitc' in plugin MGOITC v1.14.10-20160814.071553 at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46)[spigot-1.8.9.jar:git-Spigot-db6de12-07c3001] at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141)[spigot-1.8.9.jar:git-Spigot-db6de12-07c3001] at org.bukkit.craftbukkit.v1_8_R3.CraftServer.dispatchCommand(CraftServer.java:641)[spigot-1.8.9.jar:git-Spigot-db6de12-07c3001] at org.bukkit.craftbukkit.v1_8_R3.entity.CraftPlayer.performCommand(CraftPlayer.java:242)[spigot-1.8.9.jar:git-Spigot-db6de12-07c3001] at de.czymm.serversigns.taskmanager.tasks.PlayerActionTask.performCommand(PlayerActionTask.java:22)[ServerSigns%20(2).jar:?] at de.czymm.serversigns.taskmanager.tasks.PlayerActionTask.runPlayerTask(PlayerActionTask.java:51)[ServerSigns%20(2).jar:?] at de.czymm.serversigns.taskmanager.tasks.PlayerTask.runTask(PlayerTask.java:34)[ServerSigns%20(2).jar:?] at de.czymm.serversigns.taskmanager.TaskManagerTaskExecutor.runTaskImpl(TaskManagerTaskExecutor.java:45)[ServerSigns%20(2).jar:?] at de.czymm.serversigns.taskmanager.TaskManagerTaskExecutor.runTask(TaskManagerTaskExecutor.java:38)[ServerSigns%20(2).jar:?] at de.czymm.serversigns.taskmanager.TaskManagerTaskExecutor.runTask(TaskManagerTaskExecutor.java:14)[ServerSigns%20(2).jar:?] at de.czymm.serversigns.taskmanager.TaskManager.addTask(TaskManager.java:91)[ServerSigns%20(2).jar:?] at de.czymm.serversigns.signs.ServerSignExecutor.executeSignFull(ServerSignExecutor.java:103)[ServerSigns%20(2).jar:?] at de.czymm.serversigns.listeners.PlayerListener.playerInteractCheck(PlayerListener.java:60)[ServerSigns%20(2).jar:?] at sun.reflect.GeneratedMethodAccessor258.invoke(Unknown Source)[?:?] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)[?:1.8.0_72] at java.lang.reflect.Method.invoke(Method.java:498)[?:1.8.0_72] at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306)[spigot-1.8.9.jar:git-Spigot-db6de12-07c3001] at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)[spigot-1.8.9.jar:git-Spigot-db6de12-07c3001] at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502)[spigot-1.8.9.jar:git-Spigot-db6de12-07c3001] at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487)[spigot-1.8.9.jar:git-Spigot-db6de12-07c3001] at org.bukkit.craftbukkit.v1_8_R3.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:228)[spigot-1.8.9.jar:git-Spigot-db6de12-07c3001] at net.minecraft.server.v1_8_R3.PlayerInteractManager.interact(PlayerInteractManager.java:463)[spigot-1.8.9.jar:git-Spigot-db6de12-07c3001] at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:759)[spigot-1.8.9.jar:git-Spigot-db6de12-07c3001] at net.minecraft.server.v1_8_R3.PacketPlayInBlockPlace.a(PacketPlayInBlockPlace.java:52)[spigot-1.8.9.jar:git-Spigot-db6de12-07c3001] at net.minecraft.server.v1_8_R3.PacketPlayInBlockPlace.a(PacketPlayInBlockPlace.java:1)[spigot-1.8.9.jar:git-Spigot-db6de12-07c3001] at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13)[spigot-1.8.9.jar:git-Spigot-db6de12-07c3001] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)[?:1.8.0_72] at java.util.concurrent.FutureTask.run(FutureTask.java:266)[?:1.8.0_72] at net.minecraft.server.v1_8_R3.SystemUtils.a(SourceFile:44)[spigot-1.8.9.jar:git-Spigot-db6de12-07c3001] at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:715)[spigot-1.8.9.jar:git-Spigot-db6de12-07c3001] at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374)[spigot-1.8.9.jar:git-Spigot-db6de12-07c3001] at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654)[spigot-1.8.9.jar:git-Spigot-db6de12-07c3001] at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557)[spigot-1.8.9.jar:git-Spigot-db6de12-07c3001] at java.lang.Thread.run(Thread.java:745)[?:1.8.0_72]Caused by: java.lang.NullPointerException at com.comze_instancelabs.minigamesapi.MinigamesAPI.uuidToPlayer(MinigamesAPI.java:1305)[?:?] at com.comze_instancelabs.minigamesapi.Arena.joinPlayerLobby(Arena.java:759)[?:?] at com.comze_instancelabs.minigamesapi.Arena.joinPlayerLobby(Arena.java:743)[?:?] at com.comze_instancelabs.minigamesapi.commands.CommandHandler.joinArena(CommandHandler.java:658)[?:?] at com.comze_instancelabs.minigamesapi.commands.CommandHandler.handleArgs(CommandHandler.java:116)[?:?] at com.comze_instancelabs.oitc.Main.onCommand(Main.java:115)[?:?] at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44)[spigot-1.8.9.jar:git-Spigot-db6de12-07c3001] ... 33 more