errrr

[20:42:58] [Server thread/INFO]: LittleEmiRose issued server command: /levels show
[20:42:58] [Server thread/ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'levels' in plugin EpicLevels v1-Beta-2
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:47) ~[spigot.jar:git-Spigot-8043ebc-f690957]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:149) ~[spigot.jar:git-Spigot-8043ebc-f690957]
        at org.bukkit.craftbukkit.v1_14_R1.CraftServer.dispatchCommand(CraftServer.java:707) ~[spigot.jar:git-Spigot-8043ebc-f690957]
        at net.minecraft.server.v1_14_R1.PlayerConnection.handleCommand(PlayerConnection.java:1666) ~[spigot.jar:git-Spigot-8043ebc-f690957]
        at net.minecraft.server.v1_14_R1.PlayerConnection.a(PlayerConnection.java:1506) ~[spigot.jar:git-Spigot-8043ebc-f690957]
        at net.minecraft.server.v1_14_R1.PacketPlayInChat.a(PacketPlayInChat.java:47) ~[spigot.jar:git-Spigot-8043ebc-f690957]
        at net.minecraft.server.v1_14_R1.PacketPlayInChat.a(PacketPlayInChat.java:1) ~[spigot.jar:git-Spigot-8043ebc-f690957]
        at net.minecraft.server.v1_14_R1.PlayerConnectionUtils.lambda$0(PlayerConnectionUtils.java:13) ~[spigot.jar:git-Spigot-8043ebc-f690957]
        at net.minecraft.server.v1_14_R1.TickTask.run(SourceFile:18) [spigot.jar:git-Spigot-8043ebc-f690957]
        at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeTask(SourceFile:135) [spigot.jar:git-Spigot-8043ebc-f690957]
        at net.minecraft.server.v1_14_R1.IAsyncTaskHandlerReentrant.executeTask(SourceFile:23) [spigot.jar:git-Spigot-8043ebc-f690957]
        at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeNext(SourceFile:114) [spigot.jar:git-Spigot-8043ebc-f690957]
        at net.minecraft.server.v1_14_R1.MinecraftServer.aW(MinecraftServer.java:895) [spigot.jar:git-Spigot-8043ebc-f690957]
        at net.minecraft.server.v1_14_R1.MinecraftServer.executeNext(MinecraftServer.java:888) [spigot.jar:git-Spigot-8043ebc-f690957]
        at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.awaitTasks(SourceFile:123) [spigot.jar:git-Spigot-8043ebc-f690957]
        at net.minecraft.server.v1_14_R1.MinecraftServer.sleepForTick(MinecraftServer.java:872) [spigot.jar:git-Spigot-8043ebc-f690957]
        at net.minecraft.server.v1_14_R1.MinecraftServer.run(MinecraftServer.java:805) [spigot.jar:git-Spigot-8043ebc-f690957]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_201]
Caused by: java.lang.ArrayIndexOutOfBoundsException: 1
        at com.songoda.epiclevels.command.commands.CommandShow.runCommand(CommandShow.java:21) ~[?:?]
        at com.songoda.epiclevels.command.CommandManager.processRequirements(CommandManager.java:81) ~[?:?]
        at com.songoda.epiclevels.command.CommandManager.onCommand(CommandManager.java:65) ~[?:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[spigot.jar:git-Spigot-8043ebc-f690957]
        ... 17 more