Fixed PacketAdapter NPE

Plugin/src/main/java/com/willfp/ecoenchants/EcoEnchantsPlugin.java

@@ -22,11 +22,6 @@ public class EcoEnchantsPlugin extends JavaPlugin {
      */
     private final ExtensionLoader loader = new EcoExtensionLoader();
 
-    /**
-     * ProtocolLib
-     */
-    private final ProtocolManager protocolManager = ProtocolLibrary.getProtocolManager();
-
     /**
      * NMS version
      */
@@ -61,14 +56,6 @@ public class EcoEnchantsPlugin extends JavaPlugin {
         return loader;
     }
 
-    /**
-     * Get ProtocolLib protocol manager
-     * @return The {@link ProtocolManager} that EcoEnchants interacts with
-     */
-    public ProtocolManager getProtocolManager() {
-        return protocolManager;
-    }
-
     /**
      * Get plugin instance
      * @return Plugin instance

Plugin/src/main/java/com/willfp/ecoenchants/display/AbstractPacketAdapter.java

@@ -1,6 +1,7 @@
 package com.willfp.ecoenchants.display;
 
 import com.comphenix.protocol.PacketType;
+import com.comphenix.protocol.ProtocolLibrary;
 import com.comphenix.protocol.events.ListenerPriority;
 import com.comphenix.protocol.events.PacketAdapter;
 import com.comphenix.protocol.events.PacketContainer;
@@ -49,8 +50,8 @@ public abstract class AbstractPacketAdapter extends PacketAdapter {
     }
 
     public final void register() {
-        if(!EcoEnchantsPlugin.getInstance().getProtocolManager().getPacketListeners().contains(this)) {
-            EcoEnchantsPlugin.getInstance().getProtocolManager().addPacketListener(this);
+        if(!ProtocolLibrary.getProtocolManager().getPacketListeners().contains(this)) {
+            ProtocolLibrary.getProtocolManager().addPacketListener(this);
         }
     }
 }