Solved Could not pass event AsyncPlayerChatEvent

I can't fix this. I have no idea, no lines in error.

Stack Trace (open) Stack Trace (close)

Code:

[14:43:10 ERROR]: Could not pass event AsyncPlayerChatEvent to Chatix v1.0
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[spigot-1.7.10-SNAPSHOT-b1657.jar:git-Spigot-1.7.9-R0.2-208-ge0f2e95]
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot-1.7.10-SNAPSHOT-b1657.jar:git-Spigot-1.7.9-R0.2-208-ge0f2e95]
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:509) [spigot-1.7.10-SNAPSHOT-b1657.jar:git-Spigot-1.7.9-R0.2-208-ge0f2e95]
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:491) [spigot-1.7.10-SNAPSHOT-b1657.jar:git-Spigot-1.7.9-R0.2-208-ge0f2e95]
    at net.minecraft.server.v1_7_R4.PlayerConnection.chat(PlayerConnection.java:965) [spigot-1.7.10-SNAPSHOT-b1657.jar:git-Spigot-1.7.9-R0.2-208-ge0f2e95]
    at net.minecraft.server.v1_7_R4.PlayerConnection.a(PlayerConnection.java:905) [spigot-1.7.10-SNAPSHOT-b1657.jar:git-Spigot-1.7.9-R0.2-208-ge0f2e95]
    at net.minecraft.server.v1_7_R4.PacketPlayInChat.a(PacketPlayInChat.java:28) [spigot-1.7.10-SNAPSHOT-b1657.jar:git-Spigot-1.7.9-R0.2-208-ge0f2e95]
    at net.minecraft.server.v1_7_R4.PacketPlayInChat$1.run(PacketPlayInChat.java:59) [spigot-1.7.10-SNAPSHOT-b1657.jar:git-Spigot-1.7.9-R0.2-208-ge0f2e95]
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_91]
    at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_91]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_91]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_91]
    at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
Caused by: java.lang.NullPointerException
    at org.bukkit.event.player.AsyncPlayerChatEvent.setFormat(AsyncPlayerChatEvent.java:100) ~[spigot-1.7.10-SNAPSHOT-b1657.jar:git-Spigot-1.7.9-R0.2-208-ge0f2e95]
    at me.dracconi.chatix.ChatListener.onPlayerChat(ChatListener.java:17) ~[?:?]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_91]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_91]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_91]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_91]
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:298) ~[spigot-1.7.10-SNAPSHOT-b1657.jar:git-Spigot-1.7.9-R0.2-208-ge0f2e95]
    ... 12 more

I have this code:
main.java

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Code:

package me.dracconi.chatix;

import org.bukkit.Bukkit;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.plugin.java.JavaPlugin;
import org.bukkit.ChatColor;

import me.dracconi.chatix.ChatListener;

/**
* Created by dracconi on 22.05.16.
*/
public class main extends JavaPlugin{
    public void loadConfiguration(){
////        See "Creating you're defaults"
//        getConfig().options().copyDefaults(true); // NOTE: You do not have to use "plugin." if the class extends the java plugin
//        //Save the config whenever you manipulate it
//        saveConfig();
    }

    @Override
    public void onEnable(){
        loadConfiguration();
        getServer().getPluginManager().registerEvents(new ChatListener(),this);
        getLogger().info("CHATIX launched");

    }
    @Override
    public void onDisable(){}
    public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args)
    {
        if(cmd.getName().equalsIgnoreCase("chatix")) {
            Player p = (Player) sender;

            if (args.length == 0) {
                if (sender instanceof Player) {
                    p.sendMessage(ChatColor.AQUA + "Hi");}
            } else {
                if (args[0].equalsIgnoreCase("reload")) {
                    reloadConfig();
                    getLogger().info("Reloaded!");
                    p.sendMessage(ChatColor.GREEN + "Reloaded!");
                }
            }
        }
      return false;
    }

}

ChatListener.java

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Code:

package me.dracconi.chatix;

import org.bukkit.Bukkit;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.player.AsyncPlayerChatEvent;

/**
* Created by dracconi on 23.05.16.
*/
public class ChatListener implements Listener {

    @EventHandler
    public void onPlayerChat(AsyncPlayerChatEvent e){

    }
}

Fixed. I don't know how.

EDIT by Moderator: merged posts, please use the edit button instead of double posting.