11:00:18 [SEVERE] java.lang.IllegalArgumentException: Unknown entity
11:00:18 [SEVERE]       at org.bukkit.craftbukkit.entity.CraftEntity.getEntity(CraftEntity.java:135)
11:00:18 [SEVERE]       at net.minecraft.server.Entity.getBukkitEntity(Entity.java:1189)
11:00:18 [SEVERE]       at net.minecraft.server.Entity.e(Entity.java:992)
11:00:18 [SEVERE]       at net.minecraft.server.EntityTypes.a(EntityTypes.java:52)
11:00:18 [SEVERE]       at net.minecraft.server.ChunkLoader.a(SourceFile:191)
11:00:18 [SEVERE]       at net.minecraft.server.ChunkRegionLoader.a(SourceFile:66)
11:00:18 [SEVERE]       at net.minecraft.server.ChunkProviderServer.loadChunk(ChunkProviderServer.java:124)
11:00:18 [SEVERE]       at net.minecraft.server.ChunkProviderServer.getChunkAt(ChunkProviderServer.java:67)
11:00:18 [SEVERE]       at net.minecraft.server.PlayerInstance.<init>(PlayerInstance.java:31)
11:00:18 [SEVERE]       at net.minecraft.server.PlayerManager.a(PlayerManager.java:45)
11:00:18 [SEVERE]       at net.minecraft.server.PlayerManager.addPlayer(PlayerManager.java:84)
11:00:18 [SEVERE]       at net.minecraft.server.ServerConfigurationManager.c(ServerConfigurationManager.java:139)
11:00:18 [SEVERE]       at net.minecraft.server.NetLoginHandler.b(NetLoginHandler.java:113)
11:00:18 [SEVERE]       at net.minecraft.server.NetLoginHandler.a(NetLoginHandler.java:39)
11:00:18 [SEVERE]       at net.minecraft.server.NetworkListenThread.a(SourceFile:94)
11:00:18 [SEVERE]       at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:516)
11:00:18 [SEVERE]       at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:414)
11:00:18 [SEVERE]       at net.minecraft.server.ThreadServerApplication.run(SourceFile:457)
11:00:18 [SEVERE] java.lang.IllegalArgumentException: Unknown entity
11:00:18 [SEVERE]       at org.bukkit.craftbukkit.entity.CraftEntity.getEntity(CraftEntity.java:135)
11:00:18 [SEVERE]       at net.minecraft.server.Entity.getBukkitEntity(Entity.java:1189)
11:00:18 [SEVERE]       at net.minecraft.server.Entity.e(Entity.java:992)
11:00:18 [SEVERE]       at net.minecraft.server.EntityTypes.a(EntityTypes.java:52)
11:00:18 [SEVERE]       at net.minecraft.server.ChunkLoader.a(SourceFile:191)
11:00:18 [SEVERE]       at net.minecraft.server.ChunkRegionLoader.a(SourceFile:66)
11:00:18 [SEVERE]       at net.minecraft.server.ChunkProviderServer.loadChunk(ChunkProviderServer.java:124)
11:00:18 [SEVERE]       at net.minecraft.server.ChunkProviderServer.getChunkAt(ChunkProviderServer.java:67)
11:00:18 [SEVERE]       at net.minecraft.server.PlayerInstance.<init>(PlayerInstance.java:31)
11:00:18 [SEVERE]       at net.minecraft.server.PlayerManager.a(PlayerManager.java:45)
11:00:18 [SEVERE]       at net.minecraft.server.PlayerManager.addPlayer(PlayerManager.java:84)
11:00:18 [SEVERE]       at net.minecraft.server.ServerConfigurationManager.c(ServerConfigurationManager.java:139)
11:00:18 [SEVERE]       at net.minecraft.server.NetLoginHandler.b(NetLoginHandler.java:113)
11:00:18 [SEVERE]       at net.minecraft.server.NetLoginHandler.a(NetLoginHandler.java:39)
11:00:18 [SEVERE]       at net.minecraft.server.NetworkListenThread.a(SourceFile:94)
11:00:18 [SEVERE]       at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:516)
11:00:18 [SEVERE]       at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:414)
11:00:18 [SEVERE]       at net.minecraft.server.ThreadServerApplication.run(SourceFile:457)
11:00:18 [SEVERE] java.lang.IllegalArgumentException: Unknown entity
11:00:18 [SEVERE]       at org.bukkit.craftbukkit.entity.CraftEntity.getEntity(CraftEntity.java:135)
11:00:18 [SEVERE]       at net.minecraft.server.Entity.getBukkitEntity(Entity.java:1189)
11:00:18 [SEVERE]       at net.minecraft.server.Entity.e(Entity.java:992)
11:00:18 [SEVERE]       at net.minecraft.server.EntityTypes.a(EntityTypes.java:52)
11:00:18 [SEVERE]       at net.minecraft.server.ChunkLoader.a(SourceFile:191)
11:00:18 [SEVERE]       at net.minecraft.server.ChunkRegionLoader.a(SourceFile:66)
11:00:18 [SEVERE]       at net.minecraft.server.ChunkProviderServer.loadChunk(ChunkProviderServer.java:124)
11:00:18 [SEVERE]       at net.minecraft.server.ChunkProviderServer.getChunkAt(ChunkProviderServer.java:67)
11:00:18 [SEVERE]       at net.minecraft.server.PlayerInstance.<init>(PlayerInstance.java:31)
11:00:18 [SEVERE]       at net.minecraft.server.PlayerManager.a(PlayerManager.java:45)
11:00:18 [SEVERE]       at net.minecraft.server.PlayerManager.addPlayer(PlayerManager.java:84)
11:00:18 [SEVERE]       at net.minecraft.server.ServerConfigurationManager.c(ServerConfigurationManager.java:139)
11:00:18 [SEVERE]       at net.minecraft.server.NetLoginHandler.b(NetLoginHandler.java:113)
11:00:18 [SEVERE]       at net.minecraft.server.NetLoginHandler.a(NetLoginHandler.java:39)
11:00:18 [SEVERE]       at net.minecraft.server.NetworkListenThread.a(SourceFile:94)
11:00:18 [SEVERE]       at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:516)
11:00:18 [SEVERE]       at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:414)
11:00:18 [SEVERE]       at net.minecraft.server.ThreadServerApplication.run(SourceFile:457)
11:00:18 [SEVERE] java.lang.IllegalArgumentException: Unknown entity
11:00:18 [SEVERE]       at org.bukkit.craftbukkit.entity.CraftEntity.getEntity(CraftEntity.java:135)
11:00:18 [SEVERE]       at net.minecraft.server.Entity.getBukkitEntity(Entity.java:1189)
11:00:18 [SEVERE]       at net.minecraft.server.Entity.e(Entity.java:992)
11:00:18 [SEVERE]       at net.minecraft.server.EntityTypes.a(EntityTypes.java:52)
11:00:18 [SEVERE]       at net.minecraft.server.ChunkLoader.a(SourceFile:191)
11:00:18 [SEVERE]       at net.minecraft.server.ChunkRegionLoader.a(SourceFile:66)
11:00:18 [SEVERE]       at net.minecraft.server.ChunkProviderServer.loadChunk(ChunkProviderServer.java:124)
11:00:18 [SEVERE]       at net.minecraft.server.ChunkProviderServer.getChunkAt(ChunkProviderServer.java:67)
11:00:18 [SEVERE]       at net.minecraft.server.PlayerInstance.<init>(PlayerInstance.java:31)
11:00:18 [SEVERE]       at net.minecraft.server.PlayerManager.a(PlayerManager.java:45)
11:00:18 [SEVERE]       at net.minecraft.server.PlayerManager.addPlayer(PlayerManager.java:84)
11:00:18 [SEVERE]       at net.minecraft.server.ServerConfigurationManager.c(ServerConfigurationManager.java:139)
11:00:18 [SEVERE]       at net.minecraft.server.NetLoginHandler.b(NetLoginHandler.java:113)
11:00:18 [SEVERE]       at net.minecraft.server.NetLoginHandler.a(NetLoginHandler.java:39)
11:00:18 [SEVERE]       at net.minecraft.server.NetworkListenThread.a(SourceFile:94)
11:00:18 [SEVERE]       at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:516)
11:00:18 [SEVERE]       at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:414)
11:00:18 [SEVERE]       at net.minecraft.server.ThreadServerApplication.run(SourceFile:457)
11:00:18 [SEVERE] java.lang.IllegalArgumentException: Unknown entity
11:00:18 [SEVERE]       at org.bukkit.craftbukkit.entity.CraftEntity.getEntity(CraftEntity.java:135)
11:00:18 [SEVERE]       at net.minecraft.server.Entity.getBukkitEntity(Entity.java:1189)
11:00:18 [SEVERE]       at net.minecraft.server.Entity.e(Entity.java:992)
11:00:18 [SEVERE]       at net.minecraft.server.EntityTypes.a(EntityTypes.java:52)
11:00:18 [SEVERE]       at net.minecraft.server.ChunkLoader.a(SourceFile:191)
11:00:18 [SEVERE]       at net.minecraft.server.ChunkRegionLoader.a(SourceFile:66)
11:00:18 [SEVERE]       at net.minecraft.server.ChunkProviderServer.loadChunk(ChunkProviderServer.java:124)
11:00:18 [SEVERE]       at net.minecraft.server.ChunkProviderServer.getChunkAt(ChunkProviderServer.java:67)
11:00:18 [SEVERE]       at net.minecraft.server.PlayerInstance.<init>(PlayerInstance.java:31)
11:00:18 [SEVERE]       at net.minecraft.server.PlayerManager.a(PlayerManager.java:45)
11:00:18 [SEVERE]       at net.minecraft.server.PlayerManager.addPlayer(PlayerManager.java:84)
11:00:18 [SEVERE]       at net.minecraft.server.ServerConfigurationManager.c(ServerConfigurationManager.java:139)
11:00:18 [SEVERE]       at net.minecraft.server.NetLoginHandler.b(NetLoginHandler.java:113)
11:00:18 [SEVERE]       at net.minecraft.server.NetLoginHandler.a(NetLoginHandler.java:39)
11:00:18 [SEVERE]       at net.minecraft.server.NetworkListenThread.a(SourceFile:94)
11:00:18 [SEVERE]       at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:516)
11:00:18 [SEVERE]       at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:414)
11:00:18 [SEVERE]       at net.minecraft.server.ThreadServerApplication.run(SourceFile:457)
11:00:18 [SEVERE] java.lang.IllegalArgumentException: Unknown entity
11:00:18 [SEVERE]       at org.bukkit.craftbukkit.entity.CraftEntity.getEntity(CraftEntity.java:135)
11:00:18 [SEVERE]       at net.minecraft.server.Entity.getBukkitEntity(Entity.java:1189)
11:00:18 [SEVERE]       at net.minecraft.server.Entity.e(Entity.java:992)
11:00:18 [SEVERE]       at net.minecraft.server.EntityTypes.a(EntityTypes.java:52)
11:00:18 [SEVERE]       at net.minecraft.server.ChunkLoader.a(SourceFile:191)
11:00:18 [SEVERE]       at net.minecraft.server.ChunkRegionLoader.a(SourceFile:66)
11:00:18 [SEVERE]       at net.minecraft.server.ChunkProviderServer.loadChunk(ChunkProviderServer.java:124)
11:00:18 [SEVERE]       at net.minecraft.server.ChunkProviderServer.getChunkAt(ChunkProviderServer.java:67)
11:00:18 [SEVERE]       at net.minecraft.server.PlayerInstance.<init>(PlayerInstance.java:31)
11:00:18 [SEVERE]       at net.minecraft.server.PlayerManager.a(PlayerManager.java:45)
11:00:18 [SEVERE]       at net.minecraft.server.PlayerManager.addPlayer(PlayerManager.java:84)
11:00:18 [SEVERE]       at net.minecraft.server.ServerConfigurationManager.c(ServerConfigurationManager.java:139)
11:00:18 [SEVERE]       at net.minecraft.server.NetLoginHandler.b(NetLoginHandler.java:113)
11:00:18 [SEVERE]       at net.minecraft.server.NetLoginHandler.a(NetLoginHandler.java:39)
11:00:18 [SEVERE]       at net.minecraft.server.NetworkListenThread.a(SourceFile:94)
11:00:18 [SEVERE]       at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:516)
11:00:18 [SEVERE]       at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:414)
11:00:18 [SEVERE]       at net.minecraft.server.ThreadServerApplication.run(SourceFile:457)
11:00:18 [SEVERE] java.lang.IllegalArgumentException: Unknown entity
11:00:18 [SEVERE]       at org.bukkit.craftbukkit.entity.CraftEntity.getEntity(CraftEntity.java:135)
11:00:18 [SEVERE]       at net.minecraft.server.Entity.getBukkitEntity(Entity.java:1189)
11:00:18 [SEVERE]       at net.minecraft.server.Entity.e(Entity.java:992)
11:00:18 [SEVERE]       at net.minecraft.server.EntityTypes.a(EntityTypes.java:52)
11:00:18 [SEVERE]       at net.minecraft.server.ChunkLoader.a(SourceFile:191)
11:00:18 [SEVERE]       at net.minecraft.server.ChunkRegionLoader.a(SourceFile:66)
11:00:18 [SEVERE]       at net.minecraft.server.ChunkProviderServer.loadChunk(ChunkProviderServer.java:124)
11:00:18 [SEVERE]       at net.minecraft.server.ChunkProviderServer.getChunkAt(ChunkProviderServer.java:67)
11:00:18 [SEVERE]       at net.minecraft.server.PlayerInstance.<init>(PlayerInstance.java:31)
11:00:18 [SEVERE]       at net.minecraft.server.PlayerManager.a(PlayerManager.java:45)
11:00:18 [SEVERE]       at net.minecraft.server.PlayerManager.addPlayer(PlayerManager.java:84)
11:00:18 [SEVERE]       at net.minecraft.server.ServerConfigurationManager.c(ServerConfigurationManager.java:139)
11:00:18 [SEVERE]       at net.minecraft.server.NetLoginHandler.b(NetLoginHandler.java:113)
11:00:18 [SEVERE]       at net.minecraft.server.NetLoginHandler.a(NetLoginHandler.java:39)
11:00:18 [SEVERE]       at net.minecraft.server.NetworkListenThread.a(SourceFile:94)
11:00:18 [SEVERE]       at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:516)
11:00:18 [SEVERE]       at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:414)
11:00:18 [SEVERE]       at net.minecraft.server.ThreadServerApplication.run(SourceFile:457)
11:00:18 [SEVERE] java.lang.IllegalArgumentException: Unknown entity
11:00:18 [SEVERE]       at org.bukkit.craftbukkit.entity.CraftEntity.getEntity(CraftEntity.java:135)
11:00:18 [SEVERE]       at net.minecraft.server.Entity.getBukkitEntity(Entity.java:1189)
11:00:18 [SEVERE]       at net.minecraft.server.Entity.e(Entity.java:992)
11:00:18 [SEVERE]       at net.minecraft.server.EntityTypes.a(EntityTypes.java:52)
11:00:18 [SEVERE]       at net.minecraft.server.ChunkLoader.a(SourceFile:191)
11:00:18 [SEVERE]       at net.minecraft.server.ChunkRegionLoader.a(SourceFile:66)
11:00:18 [SEVERE]       at net.minecraft.server.ChunkProviderServer.loadChunk(ChunkProviderServer.java:124)
11:00:18 [SEVERE]       at net.minecraft.server.ChunkProviderServer.getChunkAt(ChunkProviderServer.java:67)
11:00:18 [SEVERE]       at net.minecraft.server.PlayerInstance.<init>(PlayerInstance.java:31)
11:00:18 [SEVERE]       at net.minecraft.server.PlayerManager.a(PlayerManager.java:45)
11:00:18 [SEVERE]       at net.minecraft.server.PlayerManager.addPlayer(PlayerManager.java:84)
11:00:18 [SEVERE]       at net.minecraft.server.ServerConfigurationManager.c(ServerConfigurationManager.java:139)
11:00:18 [SEVERE]       at net.minecraft.server.NetLoginHandler.b(NetLoginHandler.java:113)
11:00:18 [SEVERE]       at net.minecraft.server.NetLoginHandler.a(NetLoginHandler.java:39)
11:00:18 [SEVERE]       at net.minecraft.server.NetworkListenThread.a(SourceFile:94)
11:00:18 [SEVERE]       at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:516)
11:00:18 [SEVERE]       at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:414)
11:00:18 [SEVERE]       at net.minecraft.server.ThreadServerApplication.run(SourceFile:457)
11:00:38 [WARNING] Failed to handle packet: java.lang.NullPointerException
java.lang.NullPointerException
        at net.minecraft.server.ServerConfigurationManager.moveToWorld(ServerConfigurationManager.java:270)
        at net.minecraft.server.ServerConfigurationManager.moveToWorld(ServerConfigurationManager.java:220)
        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:933)
        at net.minecraft.server.Packet9Respawn.a(SourceFile:26)
        at net.minecraft.server.NetworkManager.b(NetworkManager.java:226)
        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:92)
        at net.minecraft.server.NetworkListenThread.a(SourceFile:108)
        at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:516)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:414)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:457)