Из-за чего возникает ошибка при выводе команды в консоль/игроку

Имеется данный код:

Код:

package org.example.test.test.commands

import org.bukkit.command.Command
import org.bukkit.command.CommandExecutor
import org.bukkit.command.CommandSender

import java.io.BufferedReader
import java.io.FileReader
import java.io.File

data class Info(
    val name : String,
    val owner : String,
    val token : String,
    val locations : MutableList<MutableMap<String, Double>>
)

class createCatalog : CommandExecutor {
    override fun onCommand(sender: CommandSender, command: Command, p2: String, args: Array<out String>?): Boolean {

        val name = sender.name

        var listInfo : MutableList<Info> = mutableListOf()

        val file = FileReader("files/data.txt")
        val reader = BufferedReader(file)
        var had = false

        var line: String? = reader.readLine()

        while (line != null) {
            var words = line?.split(" ") ?: continue
            var data : MutableList<MutableMap<String, Double>> = mutableListOf()

            if (words.size < 6) {
                line = reader.readLine()
                continue
            }
            var k = 3
            for (i in 0..words.size-3) {
                if (i == k) {
                    data.add(mutableMapOf<String, Double>("x" to (words[k]).toDouble(), "y" to (words[k+1]).toDouble(), "z" to (words[k+2]).toDouble()))
                    k += 3
                }
            }
            listInfo.add(Info(words[0], words[1], words[2], data))
            sender.sendMessage("${listInfo.size}")

            //println("${words[0]} ${words[1]} ${words[2]} ${data}")

            line = reader.readLine()
        }
        println(listInfo?.size)
        reader.close()
        file.close()

        return true
    }
}

Когда пытаюсьв вывести либо listInfo.size либо просто listInfo выдаёт ошибку:

[20:14:26 ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'create-catalog' in plugin test v1.0
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:47) ~[paper-api-1.19.4-R0.1-SNAPSHOT.jar:?]
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:155) ~[paper-api-1.19.4-R0.1-SNAPSHOT.jar:?]
at org.bukkit.craftbukkit.v1_19_R3.CraftServer.dispatchCommand(CraftServer.java:929) ~[paper-1.19.4.jar:git-Paper-547]
at org.bukkit.craftbukkit.v1_19_R3.command.BukkitCommandWrapper.run(BukkitCommandWrapper.java:64) ~[paper-1.19.4.jar:git-Paper-547]
at com.mojang.brigadier.CommandDispatcher.execute(CommandDispatcher.java:264) ~[paper-1.19.4.jar:?]
at net.minecraft.commands.Commands.performCommand(Commands.java:322) ~[?:?]
at net.minecraft.commands.Commands.performCommand(Commands.java:306) ~[?:?]
at net.minecraft.server.network.ServerGamePacketListenerImpl.performChatCommand(ServerGamePacketListenerImpl.java:2297) ~[?:?]
at net.minecraft.server.network.ServerGamePacketListenerImpl.lambda$handleChatCommand$20(ServerGamePacketListenerImpl.java:2257) ~[?:?]
at net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:59) ~[?:?]
at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?]
at net.minecraft.server.TickTask.run(TickTask.java:18) ~[paper-1.19.4.jar:git-Paper-547]
at net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:153) ~[?:?]
at net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:24) ~[?:?]
at net.minecraft.server.MinecraftServer.doRunTask(MinecraftServer.java:1342) ~[paper-1.19.4.jar:git-Paper-547]
at net.minecraft.server.MinecraftServer.d(MinecraftServer.java:197) ~[paper-1.19.4.jar:git-Paper-547]
at net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:126) ~[?:?]
at net.minecraft.server.MinecraftServer.pollTaskInternal(MinecraftServer.java:1319) ~[paper-1.19.4.jar:git-Paper-547]
at net.minecraft.server.MinecraftServer.pollTask(MinecraftServer.java:1312) ~[paper-1.19.4.jar:git-Paper-547]
at net.minecraft.util.thread.BlockableEventLoop.managedBlock(BlockableEventLoop.java:136) ~[?:?]
at net.minecraft.server.MinecraftServer.waitUntilNextTick(MinecraftServer.java:1290) ~[paper-1.19.4.jar:git-Paper-547]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1178) ~[paper-1.19.4.jar:git-Paper-547]
at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:320) ~[paper-1.19.4.jar:git-Paper-547]
at java.lang.Thread.run(Thread.java:833) ~[?:?]
Caused by: java.lang.NoClassDefFoundError: org/example/test/test/commands/Info
at org.example.test.test.commands.createCatalog.onCommand(createCatalog.kt:52) ~[test.jar:?]
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[paper-api-1.19.4-R0.1-SNAPSHOT.jar:?]
... 23 more
Caused by: java.lang.ClassNotFoundException: org.example.test.test.commands.Info
at org.bukkit.plugin.java.PluginClassLoader.loadClass0(PluginClassLoader.java:183) ~[paper-api-1.19.4-R0.1-SNAPSHOT.jar:?]
at org.bukkit.plugin.java.PluginClassLoader.loadClass(PluginClassLoader.java:150) ~[paper-api-1.19.4-R0.1-SNAPSHOT.jar:?]
at java.lang.ClassLoader.loadClass(ClassLoader.java:520) ~[?:?]
at org.example.test.test.commands.createCatalog.onCommand(createCatalog.kt:52) ~[test.jar:?]
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[paper-api-1.19.4-R0.1-SNAPSHOT.jar:?]
... 23 more

 

Писать что-то иннопланетное умеем, а читать ошибки нет. Удиыитеьно