Fix BrandListener

Signed-off-by: Lixfel <agga-games@gmx.de>

src/de/steamwar/bungeecore/listeners/BrandListener.java

@@ -51,7 +51,7 @@ public class BrandListener extends BasicListener {
             return;
         }
 
-        if (isLocalHost(event.getReceiver().getAddress().getAddress())) {
+        if (event.getReceiver() == null || isLocalHost(event.getReceiver().getAddress().getAddress())) {
             return;
         }