Помогите Ошибки в консоле. Все работает, но неприятно

Код:

[16:19:38 WARN]: java.lang.NoSuchMethodException: mc.CustomBoss.Main.Entyti.EntitySlimeJabba.<init>(net.minecraft.server.v1_8_R3.World)
[16:19:38 WARN]:        at java.base/java.lang.Class.getConstructor0(Unknown Source)
[16:19:38 WARN]:        at java.base/java.lang.Class.getConstructor(Unknown Source)
[16:19:38 WARN]:        at net.minecraft.server.v1_8_R3.EntityTypes.a(SourceFile:182)
[16:19:38 WARN]:        at net.minecraft.server.v1_8_R3.ChunkRegionLoader.loadEntities(ChunkRegionLoader.java:403)
[16:19:38 WARN]:        at org.bukkit.craftbukkit.v1_8_R3.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:46)
[16:19:38 WARN]:        at org.bukkit.craftbukkit.v1_8_R3.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:1)
[16:19:38 WARN]:        at org.bukkit.craftbukkit.v1_8_R3.util.AsynchronousExecutor.skipQueue(AsynchronousExecutor.java:337)
[16:19:38 WARN]:        at org.bukkit.craftbukkit.v1_8_R3.util.AsynchronousExecutor.getSkipQueue(AsynchronousExecutor.java:295)
[16:19:38 WARN]:        at org.bukkit.craftbukkit.v1_8_R3.chunkio.ChunkIOExecutor.syncChunkLoad(ChunkIOExecutor.java:16)
[16:19:38 WARN]:        at net.minecraft.server.v1_8_R3.ChunkProviderServer.getChunkAt(ChunkProviderServer.java:115)
[16:19:38 WARN]:        at net.minecraft.server.v1_8_R3.ChunkProviderServer.getChunkAt(ChunkProviderServer.java:97)
[16:19:38 WARN]:        at org.bukkit.craftbukkit.v1_8_R3.CraftWorld.getChunkAt(CraftWorld.java:126)
[16:19:38 WARN]:        at org.bukkit.craftbukkit.v1_8_R3.CraftWorld.getChunkAt(CraftWorld.java:580)
[16:19:38 WARN]:        at org.bukkit.Location.getChunk(Location.java:78)
[16:19:38 WARN]:        at mc.CustomBoss.custom.Main.Entyti.Spawner.spawn(Spawner.java:32)
[16:19:38 WARN]:        at mc.CustomBoss.custom.Entyti.Spawner.update(Spawner.java:53)
[16:19:38 WARN]:        at mc.CustomBoss.custom.Main.loadSpawners(Main.java:209)
[16:19:38 WARN]:        at mc.CustomBoss.custom.Main.onEnable(Main.java:95)
[16:19:38 WARN]:        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:321)
[16:19:38 WARN]:        at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:340)
[16:19:38 WARN]:        at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:405)
[16:19:38 WARN]:        at org.bukkit.craftbukkit.v1_8_R3.CraftServer.loadPlugin(CraftServer.java:357)
[16:19:38 WARN]:        at org.bukkit.craftbukkit.v1_8_R3.CraftServer.enablePlugins(CraftServer.java:317)
[16:19:38 WARN]:        at net.minecraft.server.v1_8_R3.MinecraftServer.s(MinecraftServer.java:414)
[16:19:38 WARN]:        at net.minecraft.server.v1_8_R3.MinecraftServer.k(MinecraftServer.java:378)
[16:19:38 WARN]:        at net.minecraft.server.v1_8_R3.MinecraftServer.a(MinecraftServer.java:333)
[16:19:38 WARN]:        at net.minecraft.server.v1_8_R3.DedicatedServer.init(DedicatedServer.java:263)
[16:19:38 WARN]:        at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:525)
[16:19:38 WARN]:        at java.base/java.lang.Thread.run(Unknown Source)
[16:19:38 WARN]: Skipping Entity with id ╨Ф╨╢╨░╨▒╨▒╨░

https://pastebin.com/brJeRv7r spawner
https://pastebin.com/bNpQCCkV main

Все работает, как должно, но ошибки в консоле при включении есть, помогите пожалуйста

 

Не лезть куда не следует, пакеты с имеами v1_8_R3 не для девелоперов.