Problem/Bug Getting an Error, and cant solve it :/

Well hello,
I am struggeling with my plugin because I cant fix it

The problem is that it says in the Consol that theres a problem with one row in my Main Class, so when I remove it it show no error/warning in the Consol. But when I test it it also doesnt work...

So here are my clases and the Consol Error:

Main Class:

Code:

package de.Prex.Pet;

import java.util.HashMap;
import net.md_5.bungee.api.ChatColor;
import org.bukkit.Bukkit;
import org.bukkit.entity.Entity;
import org.bukkit.plugin.PluginManager;
import org.bukkit.plugin.java.JavaPlugin;
public class Main extends JavaPlugin{   
       public static HashMap<String,Entity> Pets = new HashMap<String, Entity>();
       public static String prefix = ChatColor.DARK_GRAY + "[" + ChatColor.GOLD + "MarsCraft" + ChatColor.DARK_GRAY + "]";
    @Override
       public void onEnable(){
            this.getLogger().info(Main.prefix + "Plugin Aktiviert");
               PluginManager pm = Bukkit.getPluginManager();
               pm.registerEvents(new DamageListener(), this);
               pm.registerEvents(new GUI(), this); // Thats the Row the Console tells me
               pm.registerEvents(new QuitListener(), this);
               pm.registerEvents(new MoveListener(), this);
               getCommand("pet").setExecutor(new PetCommand());
            
       }
    
       @Override
       public void onDisable(){
           this.getLogger().info( Main.prefix + "Plugin Deaktiviert");
       }
}

GUI Class:

Code:

package de.Prex.Pet;


import org.bukkit.Bukkit;
import org.bukkit.Material;
import org.bukkit.entity.EntityType;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.inventory.InventoryClickEvent;
import org.bukkit.inventory.Inventory;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.ItemMeta;

public class GUI implements Listener {

        public static Inventory PETSGUI = Bukkit.createInventory(null, 27, "§6Haustiere");
       
        static{
           

            //Zurück Button
            ItemStack Barrier = new ItemStack(Material.BARRIER);
            ItemMeta BarrierM = Barrier.getItemMeta();
            BarrierM.setDisplayName("§4Zurück");
            Barrier.setItemMeta(BarrierM);
           
            //Schwein
            ItemStack Schwein = new ItemStack(Material.MONSTER_EGG, 1, (short) 90);
            ItemMeta Schweinm = Schwein.getItemMeta();
            Schweinm.setDisplayName("§dSchwein");
           
            //Schaf
            ItemStack Schaf = new ItemStack(Material.MONSTER_EGG, 1, (short) 91);
            ItemMeta SchafM = Schaf.getItemMeta();
            SchafM.setDisplayName("Schaf");
           
            //Kuh
            ItemStack Kuh = new ItemStack(Material.MONSTER_EGG, 1, (short) 92);
            ItemMeta KuhM = Kuh.getItemMeta();
            KuhM.setDisplayName("§0K§fu§0h");
           
            //Pilz-Kuh
            ItemStack PilzK = new ItemStack(Material.MONSTER_EGG, 1, (short) 96);
            ItemMeta PilzKM = PilzK.getItemMeta();
            PilzKM.setDisplayName("§4P§8i§4l§8z§4-§8K§4u§8h");
           
            //Huhn
           
            ItemStack Huhn = new ItemStack(Material.MONSTER_EGG, 1, (short) 93);
            ItemMeta HuhnM = Huhn.getItemMeta();
            HuhnM.setDisplayName("Huhn");
           
            //Wolf/Hund
           
            ItemStack Wolf = new ItemStack(Material.MONSTER_EGG, 1 ,(short) 95);
            ItemMeta WolfM = Wolf.getItemMeta();
            WolfM.setDisplayName("§7Wolf");
           
            //Ozelot/Katze
           
            ItemStack Katze = new ItemStack(Material.MONSTER_EGG, 1,(short) 98);
            ItemMeta KatzeM = Katze.getItemMeta();
            KatzeM.setDisplayName("§6K&0a§6t§0z§6e");

            //Hase
           
            ItemStack Hase = new ItemStack(Material.MONSTER_EGG, 1,(short) 101);
            ItemMeta HaseM = Hase.getItemMeta();
            HaseM.setDisplayName("Hase");
           
            //Pferd
       
            ItemStack Pferd = new ItemStack(Material.MONSTER_EGG, 1, (short) 100);
            ItemMeta PferdM = Pferd.getItemMeta();
            PferdM.setDisplayName("§0Pferd");
           
            //FlederMaus
           
            ItemStack FlederMa = new ItemStack(Material.MONSTER_EGG, 1, (short)65 );
            ItemMeta FlederMaM = FlederMa.getItemMeta();
            FlederMaM.setDisplayName("§0Fleder Maus");
           
            //TintenFisch
           
            ItemStack Tinten = new ItemStack(Material.MONSTER_EGG, 1,(short)94);
            ItemMeta TintenM = Tinten.getItemMeta();
            TintenM.setDisplayName("§bTinten Fisch");
           
            //Magma Schleim
           
            ItemStack MagmaS = new ItemStack(Material.MONSTER_EGG, 1, (short) 62);
            ItemMeta MagmaSM = MagmaS.getItemMeta();
            MagmaSM.setDisplayName("§6M§0a§6g§0m§6a S§0c§6h§0l§6e§0i§6m");
           
            //Schleim
           
            ItemStack Schleim = new ItemStack(Material.MONSTER_EGG,1 ,(short)55);
            ItemMeta SchleimM = Schleim.getItemMeta();
            SchleimM.setDisplayName("§aSchleim");
           
            //Skelett
           
            ItemStack Skelett = new ItemStack(Material.MONSTER_EGG, 1,(short)51);
            ItemMeta SkelettM = Skelett.getItemMeta();
            SkelettM.setDisplayName("§7Skelett");
           
            //Spinne
           
            ItemStack Spinne = new ItemStack(Material.MONSTER_EGG, 1,(short)52);
            ItemMeta SpinneM = Spinne.getItemMeta();
            SpinneM.setDisplayName("§0Spinne");
           
            //Zombie
           
            ItemStack Zombie = new ItemStack(Material.MONSTER_EGG, 1 ,(short)54);
            ItemMeta ZombieM = Zombie.getItemMeta();
            ZombieM.setDisplayName("§aZombie");
           
            //Zombie Schwein
           
            ItemStack ZombieP = new ItemStack(Material.MONSTER_EGG, 1,(short)57);
            ItemMeta ZombiePM = ZombieP.getItemMeta();
            ZombiePM.setDisplayName("§aZombie §6Pigman");

            //Creeper
           
            ItemStack Creeper = new ItemStack(Material.MONSTER_EGG, 1 ,(short)50);
            ItemMeta CreeperM = Creeper.getItemMeta();
            CreeperM.setDisplayName("§cCreeper");
           
            //DorfBewohner
           
            ItemStack DorfB = new ItemStack(Material.MONSTER_EGG, 1,(short)120);
            ItemMeta DorfBM = DorfB.getItemMeta();
            DorfBM.setDisplayName("Dorfbewohner");
           
            //Hexe
           
            ItemStack Hexe = new ItemStack(Material.MONSTER_EGG, 1,(short)66);
            ItemMeta HexeM = Hexe.getItemMeta();
            HexeM.setDisplayName("§5H§0e§5x§0e");
           
            //Guardian
           
            ItemStack Guardian = new ItemStack(Material.MONSTER_EGG, 1,(short)68);
            ItemMeta GuardianM = Guardian.getItemMeta();
            GuardianM.setDisplayName("§6G§3u§6a§3r§6d§4i§6a§6n");
            Guardian.setItemMeta(GuardianM);
           
            //EnderMan
           
            ItemStack Enderman = new ItemStack(Material.MONSTER_EGG, 1,(short)58);
            ItemMeta EndermanM = Enderman.getItemMeta();
            EndermanM.setDisplayName("§0Enderman");
            Enderman.setItemMeta(EndermanM);

            //Höhlen Sinne
           
            ItemStack HSpinne = new ItemStack(Material.MONSTER_EGG,1 ,(short)59);
            ItemMeta HSpinneM = HSpinne.getItemMeta();
            HSpinneM.setDisplayName("§4H§9ö§4l§9e§4n S§9p§4i§9n§4n§9e");
            HSpinne.setItemMeta(HSpinneM);
            // ChatColor.GOLD + ""
            //Blaze
           
            ItemStack Blaze = new ItemStack(Material.MONSTER_EGG, 1, (short) 61);
            ItemMeta BlazeM = Blaze.getItemMeta();
            BlazeM.setDisplayName("§6Blaze");
            Blaze.setItemMeta(BlazeM);
           
           
            //Silverfisch
           
            ItemStack SilverF = new ItemStack(Material.MONSTER_EGG,1 ,(short)60);
            ItemMeta SilverFM = SilverF.getItemMeta();
            SilverFM.setDisplayName("§7Silver Fisch");
            SilverF.setItemMeta(SilverFM);
           
            //Endermite
           
            ItemStack EnderMite = new ItemStack(Material.MONSTER_EGG,1 ,(short)67);
            ItemMeta EnderMiteM = EnderMite.getItemMeta();
            EnderMiteM.setDisplayName("§0Endermite");
            EnderMite.setItemMeta(EnderMiteM);
           
            //Einfügung der Platze im GUI
            PETSGUI.setItem(1, Barrier);
            PETSGUI.setItem(2, Schwein);
            PETSGUI.setItem(3, Schaf);
            PETSGUI.setItem(4, Kuh);
            PETSGUI.setItem(5, PilzK);
            PETSGUI.setItem(6, Huhn);
            PETSGUI.setItem(7, Wolf);
            PETSGUI.setItem(8, Katze);
            PETSGUI.setItem(9, Hase);
            PETSGUI.setItem(10, Pferd);
            PETSGUI.setItem(11, FlederMa);
            PETSGUI.setItem(12, Tinten);
            PETSGUI.setItem(13, MagmaS);
            PETSGUI.setItem(14, Schleim);
            PETSGUI.setItem(15, Skelett);
            PETSGUI.setItem(16, Spinne);
            PETSGUI.setItem(17, Zombie);
            PETSGUI.setItem(18, ZombieP);
            PETSGUI.setItem(19, Creeper);
            PETSGUI.setItem(20, DorfB);
            PETSGUI.setItem(21, Hexe);
            PETSGUI.setItem(22, Guardian);
            PETSGUI.setItem(23, Enderman);
            PETSGUI.setItem(24, HSpinne);
            PETSGUI.setItem(25, Blaze);
            PETSGUI.setItem(26, SilverF);
            PETSGUI.setItem(27, EnderMite);
       
        }
        //Das was passiert wenn jemand Draufklickt
        @EventHandler
        public void onInventoryClick(InventoryClickEvent e) {
            Player player = (Player) e.getWhoClicked();
            if (!e.getInventory().getName().equalsIgnoreCase(PETSGUI.getName())) return;
            if (e.getCurrentItem().getItemMeta() == null) return;
           
            if (e.getCurrentItem().getItemMeta().getDisplayName().equalsIgnoreCase("§4Zurück")){
                player.sendMessage( Main.prefix + " Du hast das Inventar geschlossen");       
                e.getWhoClicked().closeInventory();
                e.setCancelled(true);
                player.closeInventory();
               
               
            if (e.getCurrentItem().getItemMeta().getDisplayName().equalsIgnoreCase("§dSchwein")){
               
                new Pet().createPet(player, EntityType.PIG);
                e.getWhoClicked().closeInventory();   
                e.setCancelled(true);
           
            if (e.getCurrentItem().getItemMeta().getDisplayName().equalsIgnoreCase("Schaf")){
               
                new Pet().createPet(player, EntityType.SHEEP);
                e.getWhoClicked().closeInventory();
                e.setCancelled(true);
                       
            if (e.getCurrentItem().getItemMeta().getDisplayName().equalsIgnoreCase("§0K§fu§0h")){
               
                new Pet().createPet(player, EntityType.COW);
                e.getWhoClicked().closeInventory();
                e.setCancelled(true);
                       
            if (e.getCurrentItem().getItemMeta().getDisplayName().equalsIgnoreCase("§4P§8i§4l§8z§4-§8K§4u§8h")){
               
                new Pet().createPet(player, EntityType.MUSHROOM_COW);
                e.getWhoClicked().closeInventory();   
                e.setCancelled(true);
                           
            if (e.getCurrentItem().getItemMeta().getDisplayName().equalsIgnoreCase("§4P§8i§4l§8z§4-§8K§4u§8h")){
               
                new Pet().createPet(player, EntityType.MUSHROOM_COW);
                e.getWhoClicked().closeInventory();   
                e.setCancelled(true);               
               
                if (e.getCurrentItem().getItemMeta().getDisplayName().equalsIgnoreCase("Huhn")){
               
                new Pet().createPet(player, EntityType.CHICKEN);
                e.getWhoClicked().closeInventory();   
                e.setCancelled(true);                   
               
            if (e.getCurrentItem().getItemMeta().getDisplayName().equalsIgnoreCase("§7Wolf")){
               
                new Pet().createPet(player, EntityType.WOLF);
                e.getWhoClicked().closeInventory();   
                e.setCancelled(true);                   
               
            if (e.getCurrentItem().getItemMeta().getDisplayName().equalsIgnoreCase("§6K&0a§6t§0z§6e")){
               
                new Pet().createPet(player, EntityType.OCELOT);
                e.getWhoClicked().closeInventory();   
                e.setCancelled(true);                   
               
            if (e.getCurrentItem().getItemMeta().getDisplayName().equalsIgnoreCase("Hase")){
               
                new Pet().createPet(player, EntityType.RABBIT);
                e.getWhoClicked().closeInventory();   
                e.setCancelled(true);                   
               
            if (e.getCurrentItem().getItemMeta().getDisplayName().equalsIgnoreCase("§0Pferd")){
               
                new Pet().createPet(player, EntityType.HORSE);
                e.getWhoClicked().closeInventory();   
                e.setCancelled(true);                   
               
            if (e.getCurrentItem().getItemMeta().getDisplayName().equalsIgnoreCase("§0Fleder Maus")){
               
                new Pet().createPet(player, EntityType.BAT);
                e.getWhoClicked().closeInventory();
                e.setCancelled(true);                   
               
            if (e.getCurrentItem().getItemMeta().getDisplayName().equalsIgnoreCase("§bTinten Fisch")){
               
                new Pet().createPet(player, EntityType.SQUID);
                e.getWhoClicked().closeInventory();   
                e.setCancelled(true);                   
               
            if (e.getCurrentItem().getItemMeta().getDisplayName().equalsIgnoreCase("§6M§0a§6g§0m§6a S§0c§6h§0l§6e§0i§6m")){
               
                new Pet().createPet(player, EntityType.MAGMA_CUBE);
                e.getWhoClicked().closeInventory();   
                e.setCancelled(true);                   
               
            if (e.getCurrentItem().getItemMeta().getDisplayName().equalsIgnoreCase("§aSchleim")){
               
                new Pet().createPet(player, EntityType.SLIME);
                e.getWhoClicked().closeInventory();   
                e.setCancelled(true);                   
               
            if (e.getCurrentItem().getItemMeta().getDisplayName().equalsIgnoreCase("§7Skelett")){
               
                new Pet().createPet(player, EntityType.SKELETON);
                e.getWhoClicked().closeInventory();   
                e.setCancelled(true);                   
               
            if (e.getCurrentItem().getItemMeta().getDisplayName().equalsIgnoreCase("§0Spinne")){
               
                new Pet().createPet(player, EntityType.SPIDER);
                e.getWhoClicked().closeInventory();   
                e.setCancelled(true);                   
               
            if (e.getCurrentItem().getItemMeta().getDisplayName().equalsIgnoreCase("§aZombie")){
               
                new Pet().createPet(player, EntityType.ZOMBIE);
                e.getWhoClicked().closeInventory();
                e.setCancelled(true);
                                                                               
            if (e.getCurrentItem().getItemMeta().getDisplayName().equalsIgnoreCase("§aZombie §6Pigman")){
               
                new Pet().createPet(player, EntityType.PIG_ZOMBIE);
                e.getWhoClicked().closeInventory();   
                e.setCancelled(true);                   
               
            if (e.getCurrentItem().getItemMeta().getDisplayName().equalsIgnoreCase("§cCreeper")){
               
                new Pet().createPet(player, EntityType.CREEPER);
                e.getWhoClicked().closeInventory();   
                e.setCancelled(true);                   
               
            if (e.getCurrentItem().getItemMeta().getDisplayName().equalsIgnoreCase("Dorfbewohner")){
               
                new Pet().createPet(player, EntityType.VILLAGER);
                e.getWhoClicked().closeInventory();   
                e.setCancelled(true);                   
               
            if (e.getCurrentItem().getItemMeta().getDisplayName().equalsIgnoreCase("§6H§0e§6x§0e")){
               
                new Pet().createPet(player, EntityType.WITCH);
                e.getWhoClicked().closeInventory();   
                e.setCancelled(true);                   
               
            if (e.getCurrentItem().getItemMeta().getDisplayName().equalsIgnoreCase("§6G§3u§6a§3r§6d§4i§6a§6n")){
               
                new Pet().createPet(player, EntityType.GUARDIAN);
                e.getWhoClicked().closeInventory();   
                e.setCancelled(true);                   
               
            if (e.getCurrentItem().getItemMeta().getDisplayName().equalsIgnoreCase("§0Enderman")){
               
                new Pet().createPet(player, EntityType.ENDERMAN);
                e.getWhoClicked().closeInventory();   
                e.setCancelled(true);                   
               
            if (e.getCurrentItem().getItemMeta().getDisplayName().equalsIgnoreCase("§6Blaze")){
               
                new Pet().createPet(player, EntityType.BLAZE);
                e.getWhoClicked().closeInventory();   
                e.setCancelled(true);                   
               
            if (e.getCurrentItem().getItemMeta().getDisplayName().equalsIgnoreCase("§7Silver Fisch")){
               
                new Pet().createPet(player, EntityType.SILVERFISH);
                e.getWhoClicked().closeInventory();
                e.setCancelled(true);
                                                                                                           
            if (e.getCurrentItem().getItemMeta().getDisplayName().equalsIgnoreCase("§0Endermite")){
               
                new Pet().createPet(player, EntityType.ENDERMITE);
                e.getWhoClicked().closeInventory();   
                e.setCancelled(true);
                                                                                                               
    }
    }
                                                                                                       
    }
    }
    }
                                                                                           
                                                                                        }
                                                                                    }
                                                                                   
                                                                                }
                                                                                       
                                                                            }
                                                                        }
                                                                    }
                                                                }
                                                            }
                                                        }
                                                    }
                                                       
                                                }
                                                       
                                            }
                                               
                                        }
                                    }
                                }
                            }
                                   
                        }
                    }
                }
            }
        }   
    }
    }
       
       
    }

Plugin Error part from the Console:

Code:

[LIST=1]
[*][18:06:08] [Server thread/ERROR]: Error occurred while enabling Pet v1.0 (Is it up to date?)
[*]java.lang.ExceptionInInitializerError
[*]    at de.Prex.Pet.Main.onEnable(Main.java:22) ~[?:?]
[*]    at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:321) ~[craftbukkit.jar:git-Spigot-13716d9-0899683]
[*]    at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:335) [craftbukkit.jar:git-Spigot-13716d9-0899683]
[*]    at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:405) [craftbukkit.jar:git-Spigot-13716d9-0899683]
[*]    at org.bukkit.craftbukkit.v1_8_R1.CraftServer.loadPlugin(CraftServer.java:355) [craftbukkit.jar:git-Spigot-13716d9-0899683]
[*]    at org.bukkit.craftbukkit.v1_8_R1.CraftServer.enablePlugins(CraftServer.java:315) [craftbukkit.jar:git-Spigot-13716d9-0899683]
[*]    at net.minecraft.server.v1_8_R1.MinecraftServer.q(MinecraftServer.java:402) [craftbukkit.jar:git-Spigot-13716d9-0899683]
[*]    at net.minecraft.server.v1_8_R1.MinecraftServer.k(MinecraftServer.java:370) [craftbukkit.jar:git-Spigot-13716d9-0899683]
[*]    at net.minecraft.server.v1_8_R1.MinecraftServer.a(MinecraftServer.java:325) [craftbukkit.jar:git-Spigot-13716d9-0899683]
[*]    at net.minecraft.server.v1_8_R1.DedicatedServer.init(DedicatedServer.java:211) [craftbukkit.jar:git-Spigot-13716d9-0899683]
[*]    at net.minecraft.server.v1_8_R1.MinecraftServer.run(MinecraftServer.java:494) [craftbukkit.jar:git-Spigot-13716d9-0899683]
[*]    at java.lang.Thread.run(Unknown Source) [?:1.7.0_65]
[*]Caused by: java.lang.ArrayIndexOutOfBoundsException: 27
[*]    at org.bukkit.craftbukkit.v1_8_R1.inventory.CraftInventoryCustom$MinecraftInventory.setItem(CraftInventoryCustom.java:105) ~[craftbukkit.jar:git-Spigot-13716d9-0899683]
[*]    at org.bukkit.craftbukkit.v1_8_R1.inventory.CraftInventory.setItem(CraftInventory.java:81) ~[craftbukkit.jar:git-Spigot-13716d9-0899683]
[*]    at de.Prex.Pet.GUI.<clinit>(GUI.java:213) ~[?:?]
[*]    ... 12 more
[/LIST]

Please help me