NPE when server is starting

[LemADEC]

As of version 2.0, an NPE is reported in console:

16:26:06 [WARNING] Error dispatching event ServerKickEvent(cancelled=false, player=_Yharon_, kickedFrom=BungeeServerInfo(name=rebirth, socketAddress=localhost/127.0.0.1:xxx, restricted=false), kickReasonComponent=[TextComponent{text=Server is still starting! Please wait before reconnecting., BaseComponent(color=, font=null, bold=null, italic=null, underlined=null, strikethrough=null, obfuscated=null, insertion=null, extra=null, cl
ickEvent=null, hoverEvent=null)}], cancelServer=BungeeServerInfo(name=hub, socketAddress=localhost/127.0.0.1:xxx, restricted=false), state=CONNECTING) to listener xyz.olivermartin.slingshot.SlingShot@6db66836
java.lang.NullPointerException
    at xyz.olivermartin.slingshot.SlingShot.onServerKick(SlingShot.java:180)
    at sun.reflect.GeneratedMethodAccessor23.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at net.md_5.bungee.event.EventHandlerMethod.invoke(EventHandlerMethod.java:19)
    at net.md_5.bungee.event.EventBus.post(EventBus.java:46)
    at net.md_5.bungee.api.plugin.PluginManager.callEvent(PluginManager.java:399)
    at net.md_5.bungee.ServerConnector.handle(ServerConnector.java:382)
    at net.md_5.bungee.protocol.packet.Kick.handle(Kick.java:35)
    at net.md_5.bungee.netty.HandlerBoss.channelRead(HandlerBoss.java:105)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
    at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
    at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
    at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
    at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:324)
    at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
    at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
    at io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:286)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
    at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
    at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
    at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919)
    at io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollInReady(AbstractEpollStreamChannel.java:792)
    at io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:475)
    at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:378)
    at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989)
    at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
    at java.lang.Thread.run(Thread.java:748)