[21:46:52] [Server thread/INFO]: bak9234 issued server command: /lv start
[21:46:52] [Server thread/ERROR]: null org.bukkit.command.CommandException: Unhandled exception executing command 'lv' in plugin LinmaluVoicechat v1.10.2.0 at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[1.10.2.jar:git-Spigot-de459a2-51263e9] at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) ~[1.10.2.jar:git-Spigot-de459a2-51263e9] at org.bukkit.craftbukkit.v1_10_R1.CraftServer.dispatchCommand(CraftServer.java:647) ~[1.10.2.jar:git-Spigot-de459a2-51263e9] at net.minecraft.server.v1_10_R1.PlayerConnection.handleCommand(PlayerConnection.java:1358) [1.10.2.jar:git-Spigot-de459a2-51263e9] at net.minecraft.server.v1_10_R1.PlayerConnection.a(PlayerConnection.java:1193) [1.10.2.jar:git-Spigot-de459a2-51263e9] at net.minecraft.server.v1_10_R1.PacketPlayInChat.a(PacketPlayInChat.java:45) [1.10.2.jar:git-Spigot-de459a2-51263e9] at net.minecraft.server.v1_10_R1.PacketPlayInChat.a(PacketPlayInChat.java:1) [1.10.2.jar:git-Spigot-de459a2-51263e9] at net.minecraft.server.v1_10_R1.PlayerConnectionUtils$1.run(SourceFile:13) [1.10.2.jar:git-Spigot-de459a2-51263e9] at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_151] at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_151] at net.minecraft.server.v1_10_R1.SystemUtils.a(SourceFile:45) [1.10.2.jar:git-Spigot-de459a2-51263e9] at net.minecraft.server.v1_10_R1.MinecraftServer.D(MinecraftServer.java:732) [1.10.2.jar:git-Spigot-de459a2-51263e9] at net.minecraft.server.v1_10_R1.DedicatedServer.D(DedicatedServer.java:400) [1.10.2.jar:git-Spigot-de459a2-51263e9] at net.minecraft.server.v1_10_R1.MinecraftServer.C(MinecraftServer.java:668) [1.10.2.jar:git-Spigot-de459a2-51263e9] at net.minecraft.server.v1_10_R1.MinecraftServer.run(MinecraftServer.java:567) [1.10.2.jar:git-Spigot-de459a2-51263e9] at java.lang.Thread.run(Unknown Source) [?:1.8.0_151]
Caused by: java.util.ConcurrentModificationException at java.util.HashMap$EntrySet.forEach(Unknown Source) ~[?:1.8.0_151] at com.linmalu.voicechat.data.GameData.changeRange(GameData.java:117) ~[LinmaluVoicechat_v1.10.2.0.jar:?] at com.linmalu.voicechat.data.GameData.lambda$2(GameData.java:88) ~[LinmaluVoicechat_v1.10.2.0.jar:?] at java.lang.Iterable.forEach(Unknown Source) ~[?:1.8.0_151] at java.util.Collections$UnmodifiableCollection.forEach(Unknown Source) ~[?:1.8.0_151] at com.linmalu.voicechat.data.GameData.setDistance(GameData.java:82) ~[LinmaluVoicechat_v1.10.2.0.jar:?] at com.linmalu.voicechat.Main_Command.onCommand(Main_Command.java:55) ~[LinmaluVoicechat_v1.10.2.0.jar:?] at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[1.10.2.jar:git-Spigot-de459a2-51263e9] ... 15 more