Solved Why does this return me NullPointerException at my plugin?!

Hey guys, I was developing a plugin, and I found a little problem. Here's my code.

Code:

package soleplugin;

import java.util.ArrayList;

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

public class ChatCall implements Listener {
    public static Org plg;
    public ChatCall(Org org) {
        plg = org;
    }
   
    ArrayList<Player> chatting;
   
    @SuppressWarnings("deprecation")
    @EventHandler
    public void CallingSole(AsyncPlayerChatEvent e){
        String[] solec = e.getMessage().split(" ");
        if (e.getMessage().contains("hey sole")){
            chatting.add(e.getPlayer());
            e.setCancelled(true);
            e.getPlayer().sendMessage("§bHey " + e.getPlayer().getName() + "! I'm ready for assistance. Remember if you need help just write.");
        }
        if (chatting.contains(e.getPlayer())){
            if (e.getMessage().contains("help")){
                e.setCancelled(true);
                e.getPlayer().sendMessage("Here you are, " + e.getPlayer().getName() + "!");
                e.getPlayer().sendMessage("Here you can find all the commands and words you can use.");
                e.getPlayer().sendMessage("§cLegend: (optional words) [logic sections] <placeholders>");
                e.getPlayer().sendMessage("§3Give [me/<player name>] <amount> (of) <item-name or ID> §f- §2Give an item to you or a player.");
            }
            if (e.getMessage().contains("bye sole")){
                e.getPlayer().sendMessage("Bye! See you next time! :)");
            }
            //Commandsection
            if (e.getMessage().contains("give")){
                e.setCancelled(true);
                try{
                    if (solec[1].equals("me")){
                        e.getPlayer().getInventory().addItem(new ItemStack(Integer.getInteger(solec[2])));
                    }
                }
                catch(Exception exc) {
                    e.getPlayer().sendMessage("I couldn't understand your text properly. Please just write for help.");
                }
            }
        }
    }

}

Can you guys tell me why does this return a nullpointerexception?

My plugin is a chat assistant plugin.

Code:

[16:16:31 ERROR]: Could not pass event AsyncPlayerChatEvent to SoleVirtChat v1.0
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:310) ~[craftbukkit.jar:git-Spigot-db6de12-18fbb24]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[craftbukkit.jar:git-Spigot-db6de12-18fbb24]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [craftbukkit.jar:git-Spigot-db6de12-18fbb24]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:484) [craftbukkit.jar:git-Spigot-db6de12-18fbb24]
        at net.minecraft.server.v1_8_R3.PlayerConnection.chat(PlayerConnection.java:1084) [craftbukkit.jar:git-Spigot-db6de12-18fbb24]
        at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:1022) [craftbukkit.jar:git-Spigot-db6de12-18fbb24]
        at net.minecraft.server.v1_8_R3.PacketPlayInChat$1.run(PacketPlayInChat.java:39) [craftbukkit.jar:git-Spigot-db6de12-18fbb24]
        at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_111]
        at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_111]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.8.0_111]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.8.0_111]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_111]
Caused by: java.lang.NullPointerException
        at soleplugin.ChatCall.CallingSole(ChatCall.java:24) ~[?:?]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_111]
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_111]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_111]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_111]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[craftbukkit.jar:git-Spigot-db6de12-18fbb24]
        ... 11 more

 

Thank you I solved it!