Ich brauche dringend Hilfe, auf meinem Minecraft Server ist seit Gestern ein Hacker drauf, der in meiner protecteten welt einen wither gespawnt hat, danach wurde dann ein Spieler durch ihn getöten, obwohl er gar nicht auf dem Server war oder zumindest nicht angezeigt wurde. Was mich richtig verwunderte, war als plötzlich ganz oben am Bildschirm eine Leiste (wie Bossbarmessage) mit seinem Namen. Das komische ist, das ich das Plugin gar nicht auf dem server habe und mir war nicht bewusst das das auch ohne Plugin geht.Seine Ip Adresse habe ich auch schon ohne erfolg versucht zu bannen. Mein Server Anbieter ist Host-unlimited und ich habe gehört das man diesen DDoSen kann, ich kenne mich damit zwar nicht aus aber kann das sein und wenn ja, was kann ich dagegen tun? Oder gibt es Plugins die dies verhindern?

---- Minecraft Crash Report ----

Time: 07.02.15 08:12 Description: Exception in server tick loop

java.lang.IllegalArgumentException: n must be positive at java.util.Random.nextInt(Unknown Source) at net.minecraft.server.v1_7_R2.BiomeDecorator.a(SourceFile:122) at net.minecraft.server.v1_7_R2.BiomeDecorator.a(SourceFile:27) at net.minecraft.server.v1_7_R2.BiomeBase.a(SourceFile:364) at net.minecraft.server.v1_7_R2.BiomeBigHills.a(SourceFile:42) at net.minecraft.server.v1_7_R2.ChunkProviderGenerate.getChunkAt(SourceFile:432) at org.bukkit.craftbukkit.v1_7_R2.generator.NormalChunkGenerator.getChunkAt(NormalChunkGenerator.java:49) at net.minecraft.server.v1_7_R2.ChunkProviderServer.getChunkAt(ChunkProviderServer.java:246) at net.minecraft.server.v1_7_R2.Chunk.a(Chunk.java:836) at org.bukkit.craftbukkit.v1_7_R2.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:51) at org.bukkit.craftbukkit.v1_7_R2.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:13) at org.bukkit.craftbukkit.v1_7_R2.util.AsynchronousExecutor$Task.finish(AsynchronousExecutor.java:188) at org.bukkit.craftbukkit.v1_7_R2.util.AsynchronousExecutor.finishActive(AsynchronousExecutor.java:347) at org.bukkit.craftbukkit.v1_7_R2.chunkio.ChunkIOExecutor.tick(ChunkIOExecutor.java:34) at net.minecraft.server.v1_7_R2.MinecraftServer.v(MinecraftServer.java:597) at net.minecraft.server.v1_7_R2.DedicatedServer.v(DedicatedServer.java:250) at net.minecraft.server.v1_7_R2.MinecraftServer.u(MinecraftServer.java:548) at net.minecraft.server.v1_7_R2.MinecraftServer.run(MinecraftServer.java:459) at net.minecraft.server.v1_7_R2.ThreadServerApplication.run(SourceFile:618)

-- System Details -- Details: Minecraft Version: 1.7.5 Operating System: Windows 8.1 (amd64) version 6.3 Java Version: 1.7.0_75, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 6128590592 bytes (5844 MB) / 7102005248 bytes (6773 MB) up to 7102005248 bytes (6773 MB) JVM Flags: 2 total; -Xmx7G -Xms7G AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95 CraftBukkit Information: Running: CraftBukkit version git-Bukkit-1.7.2-R0.3-11-g08fad7a-b3037jnks (MC: 1.7.5) (Implementing API version 1.7.5-R0.1-SNAPSHOT) false Plugins: { pvpDrop v1.3.08 ca.kanoa.pvpDrop.pvpDrop [], GroupManager v2.1.31 (Phoenix) org.anjocaido.groupmanager.GroupManager [AnjoCaido, Gabriel Couto, ElgarL], AlphaChest v1.17.0 net.sradonia.bukkit.alphachest.AlphaChestPlugin [kroimon], WorldEdit v6.0;3342-78f975b9 com.sk89q.worldedit.bukkit.WorldEditPlugin [], NoCheatPlus v3.10.12-RC-sMD5NET-b700 fr.neatmonster.nocheatplus.NoCheatPlus [NeatMonster, asofold, Evenprime], CustomServerMessages

---- Minecraft Crash Report ----

Time: 07.02.15 08:12 Description: Exception in server tick loop

java.lang.IllegalArgumentException: n must be positive at java.util.Random.nextInt(Unknown Source) at net.minecraft.server.v1_7_R2.BiomeDecorator.a(SourceFile:122) at net.minecraft.server.v1_7_R2.BiomeDecorator.a(SourceFile:27) at net.minecraft.server.v1_7_R2.BiomeBase.a(SourceFile:364) at net.minecraft.server.v1_7_R2.BiomeBigHills.a(SourceFile:42) at net.minecraft.server.v1_7_R2.ChunkProviderGenerate.getChunkAt(SourceFile:432) at org.bukkit.craftbukkit.v1_7_R2.generator.NormalChunkGenerator.getChunkAt(NormalChunkGenerator.java:49) at net.minecraft.server.v1_7_R2.ChunkProviderServer.getChunkAt(ChunkProviderServer.java:246) at net.minecraft.server.v1_7_R2.Chunk.a(Chunk.java:836) at org.bukkit.craftbukkit.v1_7_R2.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:51) at org.bukkit.craftbukkit.v1_7_R2.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:13) at org.bukkit.craftbukkit.v1_7_R2.util.AsynchronousExecutor$Task.finish(AsynchronousExecutor.java:188) at org.bukkit.craftbukkit.v1_7_R2.util.AsynchronousExecutor.finishActive(AsynchronousExecutor.java:347) at org.bukkit.craftbukkit.v1_7_R2.chunkio.ChunkIOExecutor.tick(ChunkIOExecutor.java:34) at net.minecraft.server.v1_7_R2.MinecraftServer.v(MinecraftServer.java:597) at net.minecraft.server.v1_7_R2.DedicatedServer.v(DedicatedServer.java:250) at net.minecraft.server.v1_7_R2.MinecraftServer.u(MinecraftServer.java:548) at net.minecraft.server.v1_7_R2.MinecraftServer.run(MinecraftServer.java:459) at net.minecraft.server.v1_7_R2.ThreadServerApplication.run(SourceFile:618)

-- System Details -- Details: Minecraft Version: 1.7.5 Operating System: Windows 8.1 (amd64) version 6.3 Java Version: 1.7.0_75, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 6128590592 bytes (5844 MB) / 7102005248 bytes (6773 MB) up to 7102005248 bytes (6773 MB) JVM Flags: 2 total; -Xmx7G -Xms7G AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95 CraftBukkit Information: Running: CraftBukkit version git-Bukkit-1.7.2-R0.3-11-g08fad7a-b3037jnks (MC: 1.7.5) (Implementing API version 1.7.5-R0.1-SNAPSHOT) false Plugins: { pvpDrop v1.3.08 ca.kanoa.pvpDrop.pvpDrop [], GroupManager v2.1.31 (Phoenix) org.anjocaido.groupmanager.GroupManager [AnjoCaido, Gabriel Couto, ElgarL], AlphaChest v1.17.0 net.sradonia.bukkit.alphachest.AlphaChestPlugin [kroimon], WorldEdit v6.0;3342-78f975b9 com.sk89q.worldedit.bukkit.WorldEditPlugin [], NoCheatPlus v3.10.12-RC-sMD5NET-b700 fr.neatmonster.nocheatplus.NoCheatPlus [NeatMonster, asofold, Evenprime], CustomServerMessages