Dziwne błędy w konsoli przez które prawdopodobnie wywala mi serwer

Witam, 

Od jakiegoś czasu na konsoli wyświetla mi się takie coś:

Could not pass event ServerListPingEvent to Anti-Bot v1.1.2
org.bukkit.event.EventException
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:310) ~[spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at net.minecraft.server.v1_8_R3.PacketStatusListener.a(PacketStatusListener.java:101) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at net.minecraft.server.v1_8_R3.PacketStatusInStart.a(SourceFile:23) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at net.minecraft.server.v1_8_R3.PacketStatusInStart.a(SourceFile:8) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at net.minecraft.server.v1_8_R3.NetworkManager.a(NetworkManager.java:124) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at net.minecraft.server.v1_8_R3.NetworkManager.channelRead0(NetworkManager.java:325) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at net.minecraft.server.v1_8_R3.NetworkManager.channelRead0(NetworkManager.java:1) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:168) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:163) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at com.comphenix.protocol.injector.netty.ChannelInjector$4.channelRead(ChannelInjector.java:263) [ProtocolLib%20(5).jar:4.3.0]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:163) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at net.minecraft.server.v1_8_R3.LegacyPingHandler.channelRead(SourceFile:94) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at io.netty.handler.timeout.ReadTimeoutHandler.channelRead(ReadTimeoutHandler.java:150) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:787) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at io.netty.channel.epoll.EpollSocketChannel$EpollSocketUnsafe.epollInReady(EpollSocketChannel.java:722) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:326) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:264) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_121]
Caused by: java.util.ConcurrentModificationException
at java.util.HashMap$HashIterator.nextNode(HashMap.java:1437) ~[?:1.8.0_121]
at java.util.HashMap$KeyIterator.next(HashMap.java:1461) ~[?:1.8.0_121]
at pl.filippop1.antibot.option.PingOption.checkListedAddresses(PingOption.java:67) ~[?:?]
at pl.filippop1.antibot.option.PingOption.onServerListPingEvent(PingOption.java:61) ~[?:?]
at sun.reflect.GeneratedMethodAccessor66.invoke(Unknown Source) ~[?:?]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_121]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_121]
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
... 36 more

Wiem że chodzi o Anti-Bota ale ten plugin nie jest moim i nie mam do niego src więc za bardzo nie wiem co robić..

Pomocy @knugi

Pozdrawiam