diff --git a/L2J_Mobius_Helios/dist/game/data/stats/npcs/20100-20199.xml b/L2J_Mobius_Helios/dist/game/data/stats/npcs/20100-20199.xml
index a146d7c328..202b588e37 100644
--- a/L2J_Mobius_Helios/dist/game/data/stats/npcs/20100-20199.xml
+++ b/L2J_Mobius_Helios/dist/game/data/stats/npcs/20100-20199.xml
@@ -495,7 +495,7 @@
 					<item id="1539" min="1" max="1" chance="93.258796448537" /> <!-- Major Healing Potion -->
 					<item id="36537" min="1" max="1" chance="4.932587964485" /> <!-- Leather Braid -->
 					<item id="36557" min="1" max="1" chance="1.644195988162" /> <!-- Accessory Gem -->
-					<item id="49929" min="1" max="4" chance="0.164419598816" /> <!-- Spirit Stone -->
+					<item id="45929" min="1" max="4" chance="0.164419598816" /> <!-- Spirit Stone -->
 				</group>
 				<group chance="20">
 					<item id="8600" min="1" max="1" chance="50" /> <!-- Herb of Life -->
diff --git a/L2J_Mobius_Helios/java/com/l2jmobius/gameserver/data/xml/impl/NpcData.java b/L2J_Mobius_Helios/java/com/l2jmobius/gameserver/data/xml/impl/NpcData.java
index 736d8a2778..e7ca4d2583 100644
--- a/L2J_Mobius_Helios/java/com/l2jmobius/gameserver/data/xml/impl/NpcData.java
+++ b/L2J_Mobius_Helios/java/com/l2jmobius/gameserver/data/xml/impl/NpcData.java
@@ -37,6 +37,7 @@ import org.w3c.dom.Node;
 import com.l2jmobius.Config;
 import com.l2jmobius.commons.util.CommonUtil;
 import com.l2jmobius.commons.util.IGameXmlReader;
+import com.l2jmobius.gameserver.datatables.ItemTable;
 import com.l2jmobius.gameserver.enums.AISkillScope;
 import com.l2jmobius.gameserver.enums.MpRewardAffectType;
 import com.l2jmobius.gameserver.enums.MpRewardType;
@@ -659,7 +660,11 @@ public class NpcData implements IGameXmlReader
 			case "item":
 			{
 				final IDropItem dropItem = dropListScope.newDropItem(parseInteger(attrs, "id"), parseLong(attrs, "min"), parseLong(attrs, "max"), parseDouble(attrs, "chance"));
-				if (dropItem != null)
+				if (ItemTable.getInstance().getTemplate(parseInteger(attrs, "id")) == null)
+				{
+					LOGGER.warning("DropListItem: Could not find item with id " + parseInteger(attrs, "id") + ".");
+				}
+				else if (dropItem != null)
 				{
 					drops.add(dropItem);
 				}
diff --git a/L2J_Mobius_Underground/dist/game/data/stats/npcs/20100-20199.xml b/L2J_Mobius_Underground/dist/game/data/stats/npcs/20100-20199.xml
index 660825e595..d0bcd11884 100644
--- a/L2J_Mobius_Underground/dist/game/data/stats/npcs/20100-20199.xml
+++ b/L2J_Mobius_Underground/dist/game/data/stats/npcs/20100-20199.xml
@@ -542,7 +542,7 @@
 					<item id="1539" min="1" max="1" chance="93.258796448537" /> <!-- Major Healing Potion -->
 					<item id="36537" min="1" max="1" chance="4.932587964485" /> <!-- Leather Braid -->
 					<item id="36557" min="1" max="1" chance="1.644195988162" /> <!-- Accessory Gem -->
-					<item id="49929" min="1" max="4" chance="0.164419598816" /> <!-- Spirit Stone -->
+					<item id="45929" min="1" max="4" chance="0.164419598816" /> <!-- Spirit Stone -->
 				</group>
 				<group chance="20">
 					<item id="8600" min="1" max="1" chance="50" /> <!-- Herb of Life -->
diff --git a/L2J_Mobius_Underground/java/com/l2jmobius/gameserver/data/xml/impl/NpcData.java b/L2J_Mobius_Underground/java/com/l2jmobius/gameserver/data/xml/impl/NpcData.java
index 736d8a2778..e7ca4d2583 100644
--- a/L2J_Mobius_Underground/java/com/l2jmobius/gameserver/data/xml/impl/NpcData.java
+++ b/L2J_Mobius_Underground/java/com/l2jmobius/gameserver/data/xml/impl/NpcData.java
@@ -37,6 +37,7 @@ import org.w3c.dom.Node;
 import com.l2jmobius.Config;
 import com.l2jmobius.commons.util.CommonUtil;
 import com.l2jmobius.commons.util.IGameXmlReader;
+import com.l2jmobius.gameserver.datatables.ItemTable;
 import com.l2jmobius.gameserver.enums.AISkillScope;
 import com.l2jmobius.gameserver.enums.MpRewardAffectType;
 import com.l2jmobius.gameserver.enums.MpRewardType;
@@ -659,7 +660,11 @@ public class NpcData implements IGameXmlReader
 			case "item":
 			{
 				final IDropItem dropItem = dropListScope.newDropItem(parseInteger(attrs, "id"), parseLong(attrs, "min"), parseLong(attrs, "max"), parseDouble(attrs, "chance"));
-				if (dropItem != null)
+				if (ItemTable.getInstance().getTemplate(parseInteger(attrs, "id")) == null)
+				{
+					LOGGER.warning("DropListItem: Could not find item with id " + parseInteger(attrs, "id") + ".");
+				}
+				else if (dropItem != null)
 				{
 					drops.add(dropItem);
 				}