diff --git a/L2J_DataPack_BETA/dist/game/data/scripts/hellbound/TowerOfNaia/TowerOfNaia.java b/L2J_DataPack_BETA/dist/game/data/scripts/hellbound/TowerOfNaia/TowerOfNaia.java
index fbce558b58f9e6c598c0ff07389b20f5af7256a8..f47058c82ec7b72b1e2ccc4e8a993d745a0d20d8 100644
--- a/L2J_DataPack_BETA/dist/game/data/scripts/hellbound/TowerOfNaia/TowerOfNaia.java
+++ b/L2J_DataPack_BETA/dist/game/data/scripts/hellbound/TowerOfNaia/TowerOfNaia.java
@@ -980,8 +980,11 @@ public class TowerOfNaia extends Quest
 			if ((_lock == null) || (_lock.getCurrentHp() > (_lock.getMaxHp() / 10)))
 			{
 				htmltext = null;
-				_lock.deleteMe();
-				_lock = null;
+				if (_lock != null)
+				{
+					_lock.deleteMe();
+					_lock = null;
+				}
 				cancelQuestTimers("spawn_lock");
 				startQuestTimer("spawn_lock", 300000, null, null);
 				npc.setTarget(player);