[22:04:54 INFO]: artish1 issued server command: /mv tp arena
[22:04:59 INFO]: artish1 issued server command: /gmc
[22:05:12 INFO]: [WorldEdit] Using external NmsBlock for this version: CBXNmsBlo
ck_1710
[22:05:13 WARN]: Failed to handle packet for /127.0.0.1:52397
java.lang.IllegalArgumentException: bound must be positive
        at java.util.Random.nextInt(Unknown Source) ~[?:1.8.0_20]
        at net.minecraft.server.v1_7_R4.BiomeDecorator.a(SourceFile:122) ~[minec
raft_server.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
        at net.minecraft.server.v1_7_R4.BiomeDecorator.a(SourceFile:27) ~[minecr
aft_server.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
        at net.minecraft.server.v1_7_R4.BiomeBase.a(SourceFile:364) ~[minecraft_
server.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
        at net.minecraft.server.v1_7_R4.BiomeBigHills.a(SourceFile:42) ~[minecra
ft_server.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
        at net.minecraft.server.v1_7_R4.ChunkProviderGenerate.getChunkAt(SourceF
ile:432) ~[minecraft_server.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
        at org.bukkit.craftbukkit.v1_7_R4.generator.NormalChunkGenerator.getChun
kAt(NormalChunkGenerator.java:49) ~[minecraft_server.jar:git-Bukkit-1.7.9-R0.2-2
4-g07d4558-b3116jnks]
        at net.minecraft.server.v1_7_R4.ChunkProviderServer.getChunkAt(ChunkProv
iderServer.java:266) ~[minecraft_server.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3
116jnks]
        at net.minecraft.server.v1_7_R4.Chunk.loadNearby(Chunk.java:863) ~[minec
raft_server.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
        at net.minecraft.server.v1_7_R4.ChunkProviderServer.originalGetChunkAt(C
hunkProviderServer.java:189) ~[minecraft_server.jar:git-Bukkit-1.7.9-R0.2-24-g07
d4558-b3116jnks]
        at net.minecraft.server.v1_7_R4.ChunkProviderServer.getChunkAt(ChunkProv
iderServer.java:123) ~[minecraft_server.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3
116jnks]
        at net.minecraft.server.v1_7_R4.PlayerChunk.<init>(PlayerChunk.java:35)
~[minecraft_server.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
        at net.minecraft.server.v1_7_R4.PlayerChunkMap.a(PlayerChunkMap.java:91)
 ~[minecraft_server.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
        at net.minecraft.server.v1_7_R4.PlayerChunkMap.b(PlayerChunkMap.java:167
) ~[minecraft_server.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
        at net.minecraft.server.v1_7_R4.PlayerChunkMap.movePlayer(PlayerChunkMap
.java:243) ~[minecraft_server.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
        at net.minecraft.server.v1_7_R4.PlayerList.d(PlayerList.java:297) ~[mine
craft_server.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
        at net.minecraft.server.v1_7_R4.PlayerConnection.a(PlayerConnection.java
:418) ~[minecraft_server.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
        at net.minecraft.server.v1_7_R4.PacketPlayInFlying.a(SourceFile:137) ~[m
inecraft_server.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
        at net.minecraft.server.v1_7_R4.PacketPlayInPositionLook.handle(SourceFi
le:20) ~[minecraft_server.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
        at net.minecraft.server.v1_7_R4.NetworkManager.a(NetworkManager.java:157
) ~[minecraft_server.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
        at net.minecraft.server.v1_7_R4.ServerConnection.c(SourceFile:134) [mine
craft_server.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
        at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:6
67) [minecraft_server.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
        at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:2
58) [minecraft_server.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
        at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:5
58) [minecraft_server.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
        at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java
:469) [minecraft_server.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
        at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:6
28) [minecraft_server.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
[22:05:13 INFO]: artish1 lost connection: Internal server error
[22:05:13 INFO]: artish1 left the game.