diff --git a/src/main/java/org/gcube/portlets/widgets/wsexplorer/server/ItemBuilder.java b/src/main/java/org/gcube/portlets/widgets/wsexplorer/server/ItemBuilder.java
index bb8575d..6b3829f 100644
--- a/src/main/java/org/gcube/portlets/widgets/wsexplorer/server/ItemBuilder.java
+++ b/src/main/java/org/gcube/portlets/widgets/wsexplorer/server/ItemBuilder.java
@@ -139,7 +139,13 @@ public class ItemBuilder {
 	 * @return the folder item type
 	 */
 	protected static ItemType getFolderItemType(FolderItem item){
-		return ItemType.valueOf(item.getFolderItemType().toString());
+		
+		try{
+			return ItemType.valueOf(item.getFolderItemType().toString());
+		}catch (Exception e) {
+			_log.error("Item Type non found: ",e);
+			return ItemType.UNKNOWN_TYPE;
+		}
 	}
 	
 	/**
diff --git a/src/main/java/org/gcube/portlets/widgets/wsexplorer/shared/ItemType.java b/src/main/java/org/gcube/portlets/widgets/wsexplorer/shared/ItemType.java
index 4652103..b2ed612 100644
--- a/src/main/java/org/gcube/portlets/widgets/wsexplorer/shared/ItemType.java
+++ b/src/main/java/org/gcube/portlets/widgets/wsexplorer/shared/ItemType.java
@@ -27,5 +27,6 @@ public enum ItemType {
 	IMAGE_DOCUMENT,
 	URL_DOCUMENT,
 	GCUBE_ITEM,
+	TIME_SERIES,
 	UNKNOWN_TYPE;
 }