Код:
[01:54:27 WARN]: java.lang.Throwable: [ERROR] Illegal PlayerChunkMap::addEntity for world world_the_end: EntityComplexPart['Ender Dragon'/104090, uuid='8894b4e1-900f-4e2b-83ce-856482b88177', l='world_the_end', x=43.80, y=88.64, z=-24.15, cx=0, cz=0, tl=0, v=false, d=false]
[01:54:27 WARN]: at net.minecraft.server.v1_15_R1.PlayerChunkMap.addEntity(PlayerChunkMap.java:1907)
[01:54:27 WARN]: at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)
[01:54:27 WARN]: at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[01:54:27 WARN]: at java.lang.reflect.Method.invoke(Method.java:498)
[01:54:27 WARN]: at net.minemora.entitytrackerfixer.v1_15_R1.NMSEntityTracker.trackEntities(NMSEntityTracker.java:35)
[01:54:27 WARN]: at net.minemora.entitytrackerfixer.v1_15_R1.tasks.CheckTask.checkWorld(CheckTask.java:51)
[01:54:27 WARN]: at net.minemora.entitytrackerfixer.v1_15_R1.tasks.CheckTask.run(CheckTask.java:30)
[01:54:27 WARN]: at org.bukkit.craftbukkit.v1_15_R1.scheduler.CraftTask.run(CraftTask.java:99)
[01:54:27 WARN]: at org.bukkit.craftbukkit.v1_15_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:468)
[01:54:27 WARN]: at net.minecraft.server.v1_15_R1.MinecraftServer.b(MinecraftServer.java:1263)
[01:54:27 WARN]: at net.minecraft.server.v1_15_R1.DedicatedServer.b(DedicatedServer.java:430)
[01:54:27 WARN]: at net.minecraft.server.v1_15_R1.MinecraftServer.a(MinecraftServer.java:1180)
[01:54:27 WARN]: at net.minecraft.server.v1_15_R1.MinecraftServer.run(MinecraftServer.java:969)
[01:54:27 WARN]: at java.lang.Thread.run(Thread.java:748)