[22:00:58] [Server thread/WARN]: [CTF] Task #3017189 for CTF v1.4.26 generated an exception
java.lang.IllegalArgumentException: Packet of sender CLIENT cannot be sent to a client.
	at com.comphenix.protocol.injector.PacketFilterManager.sendServerPacket(PacketFilterManager.java:755) ~[?:?]
	at com.comphenix.protocol.injector.PacketFilterManager.sendServerPacket(PacketFilterManager.java:740) ~[?:?]
	at me.jakubson.listeners.ListenerPlayerDeathEvent2$1.run(ListenerPlayerDeathEvent2.java:48) ~[?:?]
	at org.bukkit.craftbukkit.v1_11_R1.scheduler.CraftTask.run(CraftTask.java:71) ~[java8.jar:git-Spigot-65a0347-1a71021]
	at org.bukkit.craftbukkit.v1_11_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:353) [java8.jar:git-Spigot-65a0347-1a71021]
	at net.minecraft.server.v1_11_R1.MinecraftServer.D(MinecraftServer.java:738) [java8.jar:git-Spigot-65a0347-1a71021]
	at net.minecraft.server.v1_11_R1.DedicatedServer.D(DedicatedServer.java:399) [java8.jar:git-Spigot-65a0347-1a71021]
	at net.minecraft.server.v1_11_R1.MinecraftServer.C(MinecraftServer.java:678) [java8.jar:git-Spigot-65a0347-1a71021]
	at net.minecraft.server.v1_11_R1.MinecraftServer.run(MinecraftServer.java:576) [java8.jar:git-Spigot-65a0347-1a71021]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_51]