[00:04:16] [Server thread/ERROR]: [AirBar] java.lang.IllegalArgumentException: Cannot measure distance between Chained and Chained
	at org.bukkit.Location.distanceSquared(Location.java:456)
	at org.bukkit.Location.distance(Location.java:439)
	at be.maximvdw.airbarcore.boss.BossBarv1$EmbeddedBossBarListener.onMove(BossBarv1.java:387)
	at sun.reflect.GeneratedMethodAccessor46.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.mcnative.runtime.bukkit.plugin.McNativePluginWrapperLoader.lambda$registerMethods$1(McNativePluginWrapperLoader.java:116)
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
	at org.bukkit.plugin.TimedRegisteredListener.callEvent(TimedRegisteredListener.java:36)
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:517)
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:502)
	at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:273)
	at net.minecraft.server.v1_8_R3.PacketPlayInFlying.a(SourceFile:126)
	at net.minecraft.server.v1_8_R3.PacketPlayInFlying$PacketPlayInPositionLook.a(SourceFile:18)
	at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at net.minecraft.server.v1_8_R3.SystemUtils.a(SourceFile:44)
	at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:774)
	at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:378)
	at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:713)
	at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:616)
	at java.lang.Thread.run(Thread.java:748)