diff --git a/src/org/gcube/vremanagement/vremodeler/impl/ModelerService.java b/src/org/gcube/vremanagement/vremodeler/impl/ModelerService.java
index b0c1243..8ef5f77 100644
--- a/src/org/gcube/vremanagement/vremodeler/impl/ModelerService.java
+++ b/src/org/gcube/vremanagement/vremodeler/impl/ModelerService.java
@@ -337,7 +337,10 @@ public class ModelerService {
 				}
 
 			DBInterface.InsertInto("VRERELATEDMETADATAFORMAT", values);
-		}catch(Exception e){throw new GCUBEFault(e);}
+		}catch(Exception e){
+			throw new GCUBEFault(e);
+			e.printStackTrace();
+		}
 	}
 
 
diff --git a/src/org/gcube/vremanagement/vremodeler/impl/XMLUtil.java b/src/org/gcube/vremanagement/vremodeler/impl/XMLUtil.java
index 889c259..ff2386d 100644
--- a/src/org/gcube/vremanagement/vremodeler/impl/XMLUtil.java
+++ b/src/org/gcube/vremanagement/vremodeler/impl/XMLUtil.java
@@ -316,15 +316,15 @@ public class XMLUtil {
 		
 		try {
 			ResultSet csRes=DBInterface.queryDB("select * from cs;");
-			boolean notEntered= true;
-			
-			StringBuilder temp= new StringBuilder();
-			temp.append("<CS id=\"-1\" name=\"Workflows\" ");
-			//if(selectedFunct.contains(res.getInt(1))) temp+="selected=\"true\">";
-			//else 
-			temp.append("selected=\"false\">");
-			temp.append("<CSDescription>This class of functions contains compound functions defined by aggregating existing functions in structured workflows as to deliver advanced features.</CSDescription>");				
 			if (csRes.next()){
+							
+				StringBuilder temp= new StringBuilder();
+				temp.append("<CS id=\"-1\" name=\"Workflows\" ");
+				//if(selectedFunct.contains(res.getInt(1))) temp+="selected=\"true\">";
+				//else 
+				temp.append("selected=\"false\">");
+				temp.append("<CSDescription>This class of functions contains compound functions defined by aggregating existing functions in structured workflows as to deliver advanced features.</CSDescription>");				
+				
 				do{
 					temp.append("<child><CS id=\"");
 					temp.append(csRes.getString(1));
@@ -337,12 +337,13 @@ public class XMLUtil {
 					temp.append(csRes.getString(3));
 					temp.append("</CSDescription>");
 					temp.append("</CS></child>");
+				
 				}while (csRes.next());
+				temp.append("</CS>");
+				toReturn.append(temp);
 
 			}
-			temp.append("</CS>");
-			toReturn.append(temp);
-
+			
 			
 		} catch (SQLException e) {
 			logger.error("VDLModelService: DB error retreiving CS");