v4.1.1 error

[x1p]

Executing the base command /ast leads to an error

[21:53:25 INFO]: Player123abc issued server command: /ast
[21:53:25 ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'ast' in plugin ArmorStandTools v4.0.2
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:47) ~[patched_1.17.1.jar:git-Purpur-1283]
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:172) ~[patched_1.17.1.jar:git-Purpur-1283]
at org.bukkit.craftbukkit.v1_17_R1.CraftServer.dispatchCommand(CraftServer.java:821) ~[patched_1.17.1.jar:git-Purpur-1283]
at net.minecraft.server.network.ServerGamePacketListenerImpl.handleCommand(ServerGamePacketListenerImpl.java:2319) ~[?:?]
at net.minecraft.server.network.ServerGamePacketListenerImpl.handleChat(ServerGamePacketListenerImpl.java:2130) ~[?:?]
at net.minecraft.server.network.ServerGamePacketListenerImpl.handleChat(ServerGamePacketListenerImpl.java:2111) ~[?:?]
at net.minecraft.network.protocol.game.ServerboundChatPacket.handle(ServerboundChatPacket.java:46) ~[?:?]
at net.minecraft.network.protocol.game.ServerboundChatPacket.handle(ServerboundChatPacket.java:6) ~[?:?]
at net.minecraft.network.protocol.PacketUtils.lambda$ensureRunningOnSameThread$1(PacketUtils.java:56) ~[?:?]
at net.minecraft.server.TickTask.run(TickTask.java:18) ~[patched_1.17.1.jar:git-Purpur-1283]
at net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:149) ~[?:?]
at net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[?:?]
at net.minecraft.server.MinecraftServer.doRunTask(MinecraftServer.java:1422) ~[patched_1.17.1.jar:git-Purpur-1283]
at net.minecraft.server.MinecraftServer.shouldRun(MinecraftServer.java:190) ~[patched_1.17.1.jar:git-Purpur-1283]
at net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[?:?]
at net.minecraft.server.MinecraftServer.pollTaskInternal(MinecraftServer.java:1400) ~[patched_1.17.1.jar:git-Purpur-1283]
at net.minecraft.server.MinecraftServer.pollTask(MinecraftServer.java:1393) ~[patched_1.17.1.jar:git-Purpur-1283]
at net.minecraft.util.thread.BlockableEventLoop.managedBlock(BlockableEventLoop.java:132) ~[?:?]
at net.minecraft.server.MinecraftServer.waitUntilNextTick(MinecraftServer.java:1369) ~[patched_1.17.1.jar:git-Purpur-1283]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1280) ~[patched_1.17.1.jar:git-Purpur-1283]
at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:319) ~[patched_1.17.1.jar:git-Purpur-1283]
at java.lang.Thread.run(Thread.java:831) [?:?]
Caused by: java.lang.ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0
at com.gmail.st3venau.plugins.armorstandtools.Commands.onCommand(Commands.java:47) ~[?:?]
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[patched_1.17.1.jar:git-Purpur-1283]
... 21 more