/is command argument Internal Server error

[BartBarends]

When you are using /is with parameters that don't exist, like /is sdfsdf it will give this message in chat:

Stacktrace:

org.bukkit.command.CommandException: Unhandled exception executing command 'is' in plugin SkyblockX v1.5
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:47) ~[spigot-1.15.2.jar:git-Spigot-800b93f-8160e29]
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:149) ~[spigot-1.15.2.jar:git-Spigot-800b93f-8160e29]
	at org.bukkit.craftbukkit.v1_15_R1.CraftServer.dispatchCommand(CraftServer.java:711) ~[spigot-1.15.2.jar:git-Spigot-800b93f-8160e29]
	at net.minecraft.server.v1_15_R1.PlayerConnection.handleCommand(PlayerConnection.java:1657) ~[spigot-1.15.2.jar:git-Spigot-800b93f-8160e29]
	at net.minecraft.server.v1_15_R1.PlayerConnection.a(PlayerConnection.java:1497) ~[spigot-1.15.2.jar:git-Spigot-800b93f-8160e29]
	at net.minecraft.server.v1_15_R1.PacketPlayInChat.a(PacketPlayInChat.java:47) ~[spigot-1.15.2.jar:git-Spigot-800b93f-8160e29]
	at net.minecraft.server.v1_15_R1.PacketPlayInChat.a(PacketPlayInChat.java:1) ~[spigot-1.15.2.jar:git-Spigot-800b93f-8160e29]
	at net.minecraft.server.v1_15_R1.PlayerConnectionUtils.lambda$0(PlayerConnectionUtils.java:19) ~[spigot-1.15.2.jar:git-Spigot-800b93f-8160e29]
	at net.minecraft.server.v1_15_R1.TickTask.run(SourceFile:18) [spigot-1.15.2.jar:git-Spigot-800b93f-8160e29]
	at net.minecraft.server.v1_15_R1.IAsyncTaskHandler.executeTask(SourceFile:144) [spigot-1.15.2.jar:git-Spigot-800b93f-8160e29]
	at net.minecraft.server.v1_15_R1.IAsyncTaskHandlerReentrant.executeTask(SourceFile:23) [spigot-1.15.2.jar:git-Spigot-800b93f-8160e29]
	at net.minecraft.server.v1_15_R1.IAsyncTaskHandler.executeNext(SourceFile:118) [spigot-1.15.2.jar:git-Spigot-800b93f-8160e29]
	at net.minecraft.server.v1_15_R1.MinecraftServer.ba(MinecraftServer.java:918) [spigot-1.15.2.jar:git-Spigot-800b93f-8160e29]
	at net.minecraft.server.v1_15_R1.MinecraftServer.executeNext(MinecraftServer.java:911) [spigot-1.15.2.jar:git-Spigot-800b93f-8160e29]
	at net.minecraft.server.v1_15_R1.IAsyncTaskHandler.awaitTasks(SourceFile:127) [spigot-1.15.2.jar:git-Spigot-800b93f-8160e29]
	at net.minecraft.server.v1_15_R1.MinecraftServer.sleepForTick(MinecraftServer.java:895) [spigot-1.15.2.jar:git-Spigot-800b93f-8160e29]
	at net.minecraft.server.v1_15_R1.MinecraftServer.run(MinecraftServer.java:828) [spigot-1.15.2.jar:git-Spigot-800b93f-8160e29]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_251]
Caused by: java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
	at java.util.LinkedList.checkElementIndex(Unknown Source) ~[?:1.8.0_251]
	at java.util.LinkedList.get(Unknown Source) ~[?:1.8.0_251]
	at net.savagelabs.savagepluginx.command.Command.sendCommandFormat(Command.kt:178) ~[?:?]
	at net.savagelabs.savagepluginx.command.Command.sendCommandFormat$default(Command.kt:166) ~[?:?]
	at net.savagelabs.savagepluginx.command.Command.handleCommandFormat(Command.kt:81) ~[?:?]
	at net.savagelabs.savagepluginx.command.Command.checkInput(Command.kt:73) ~[?:?]
	at net.savagelabs.savagepluginx.command.Command.execute(Command.kt:42) ~[?:?]
	at net.savagelabs.skyblockx.command.island.IslandBaseCommand.onCommand(IslandBaseCommand.kt:67) ~[?:?]
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[spigot-1.15.2.jar:git-Spigot-800b93f-8160e29]
	... 17 more

[Naman]

This was fixed recently;

I will dm you a build.