org.bukkit.event.EventException: null [Error]

Uh, hi. I'm new in java, so please, don't judge me.
So... I'm trying to make a Login plugin and i caught a error:

Code:

[05:33:40 ERROR]: Could not pass event PlayerMoveEvent to AuthPlugin v1.0-SNAPSHOT
org.bukkit.event.EventException: null
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:310) ~[Spigot.jar:git-Spigot-21fe707-741a1bd]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[Spigot.jar:git-Spigot-21fe707-741a1bd]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [Spigot.jar:git-Spigot-21fe707-741a1bd]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [Spigot.jar:git-Spigot-21fe707-741a1bd]
        at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:270) [Spigot.jar:git-Spigot-21fe707-741a1bd]
        at net.minecraft.server.v1_8_R3.PacketPlayInFlying.a(SourceFile:126) [Spigot.jar:git-Spigot-21fe707-741a1bd]
        at net.minecraft.server.v1_8_R3.PacketPlayInFlying$PacketPlayInPosition.a(SourceFile:57) [Spigot.jar:git-Spigot-21fe707-741a1bd]
        at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13) [Spigot.jar:git-Spigot-21fe707-741a1bd]
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) [?:?]
        at java.util.concurrent.FutureTask.run(FutureTask.java:264) [?:?]
        at net.minecraft.server.v1_8_R3.SystemUtils.a(SourceFile:44) [Spigot.jar:git-Spigot-21fe707-741a1bd]
        at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:715) [Spigot.jar:git-Spigot-21fe707-741a1bd]
        at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [Spigot.jar:git-Spigot-21fe707-741a1bd]
        at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [Spigot.jar:git-Spigot-21fe707-741a1bd]
        at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [Spigot.jar:git-Spigot-21fe707-741a1bd]
        at java.lang.Thread.run(Thread.java:833) [?:?]
Caused by: java.lang.NoSuchMethodError: 'boolean br.com.daniyusk.API.areLoged(org.bukkit.entity.Player)'
        at br.com.daniyusk.Events.doNotMove(Events.java:38) ~[?:?]
        at jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104) ~[?:?]
        at java.lang.reflect.Method.invoke(Method.java:577) ~[?:?]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[Spigot.jar:git-Spigot-21fe707-741a1bd]
        ... 15 more

And here's the code:

Code:

package br.com.daniyusk;

import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.player.AsyncPlayerChatEvent;
import org.bukkit.event.player.PlayerJoinEvent;
import org.bukkit.event.player.PlayerMoveEvent;
import org.bukkit.scheduler.BukkitRunnable;

public class Events implements Listener {

    @EventHandler
    public void playerJoined(PlayerJoinEvent e) {
        Player player = e.getPlayer();
        String playerName = player.getName();

        if (!API.areLoged(player)) {
            if (!Config.Contains(playerName)) {
                player.sendMessage("§a Registre-se por favor: /register <password> <password>");
            } else {
                player.sendMessage("§a Logue-se por favor: /login <password>");
            }
        }

        new BukkitRunnable() {
            public void run(){
                if (!API.areLoged(player)) {
                    player.kickPlayer("§cTempo esgotado!");
                }
            }
        }.runTaskLater(authplugin.getInstance(), 20*60 );
    }

    @EventHandler
    public void doNotMove(PlayerMoveEvent e) {
        Player player = e.getPlayer();
        if (!API.areLoged(player)) {
            player.teleport(e.getFrom());
        }
    }

    @EventHandler
    public void doNotChat(AsyncPlayerChatEvent e){
        Player player = e.getPlayer();
        if (!API.areLoged(player)) {
            e.setCancelled(true);
            player.sendMessage("§cRegistre-se/Logue para digitar no chat!");
        }
    }
}

I'm very frustrated that I can't find a solution. Maybe it's just a dumb mistake or whatever.
Thanks for anyone who can help me.

 

Sorry for taking so long to reply...
So... I still don't understand how this can affect, maybe I'm too stupid to understand. If you can explain it to me I would appreciate it.

Here's the code from the plugin:

Code:

    public static boolean areLoged(Player player) {
        return playersLoged.contains(player);
    }

 

I making a plugin for minigames servers for pirates players so, i need to make a security system (login).