diff --git a/src/main/java/org/gcube/portlets/user/td/csvexportwidget/client/CSVExportConfigCard.java b/src/main/java/org/gcube/portlets/user/td/csvexportwidget/client/CSVExportConfigCard.java
index 1c46d65..d2d1456 100644
--- a/src/main/java/org/gcube/portlets/user/td/csvexportwidget/client/CSVExportConfigCard.java
+++ b/src/main/java/org/gcube/portlets/user/td/csvexportwidget/client/CSVExportConfigCard.java
@@ -6,7 +6,10 @@ import org.gcube.portlets.user.td.csvexportwidget.client.grid.ColumnDataGridPane
 import org.gcube.portlets.user.td.gwtservice.client.rpc.TDGWTServiceAsync;
 import org.gcube.portlets.user.td.gwtservice.shared.csv.AvailableCharsetList;
 import org.gcube.portlets.user.td.gwtservice.shared.csv.CSVExportSession;
+import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTSessionExpiredException;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.ColumnData;
+import org.gcube.portlets.user.td.widgetcommonevent.client.event.SessionExpiredEvent;
+import org.gcube.portlets.user.td.widgetcommonevent.client.type.SessionExpiredType;
 import org.gcube.portlets.user.td.wizardwidget.client.WizardCard;
 
 import com.allen_sauer.gwt.log.client.Log;
@@ -113,9 +116,16 @@ public class CSVExportConfigCard extends WizardCard {
 					 * {@inheritDoc}
 					 */
 					public void onFailure(Throwable caught) {
+						if (caught instanceof TDGWTSessionExpiredException) {
+							getEventBus().fireEvent(new SessionExpiredEvent(
+									SessionExpiredType.EXPIREDONSERVER));
+						} else {
+					
+						
 						GWT.log("Error loading charset list", caught);
 						showErrorAndHide("Error loading charset list",
 								"Error loading charset list", "", caught);
+						}
 					}
 				});
 
diff --git a/src/main/java/org/gcube/portlets/user/td/csvexportwidget/client/CSVExportWizardTD.java b/src/main/java/org/gcube/portlets/user/td/csvexportwidget/client/CSVExportWizardTD.java
index ca8428d..dc37860 100644
--- a/src/main/java/org/gcube/portlets/user/td/csvexportwidget/client/CSVExportWizardTD.java
+++ b/src/main/java/org/gcube/portlets/user/td/csvexportwidget/client/CSVExportWizardTD.java
@@ -4,7 +4,7 @@ package org.gcube.portlets.user.td.csvexportwidget.client;
 
 import org.gcube.portlets.user.td.gwtservice.shared.csv.CSVExportSession;
 import org.gcube.portlets.user.td.wizardwidget.client.WizardWindow;
-
+import com.google.web.bindery.event.shared.EventBus;
 
 
 
@@ -21,8 +21,8 @@ public class CSVExportWizardTD  extends WizardWindow  {
 	 * @param targetId
 	 */
 	
-	public CSVExportWizardTD(String title)	{
-		super(title);
+	public CSVExportWizardTD(String title, EventBus eventBus)	{
+		super(title,eventBus);
 		
 		exportSession= new CSVExportSession();
 		
@@ -30,8 +30,6 @@ public class CSVExportWizardTD  extends WizardWindow  {
 		addCard(csvExportConfigCard);
 		csvExportConfigCard.setup();
 	
-		
-		
 	
 	}
 	
diff --git a/src/main/java/org/gcube/portlets/user/td/csvexportwidget/client/CSVExportWizardTDEntry.java b/src/main/java/org/gcube/portlets/user/td/csvexportwidget/client/CSVExportWizardTDEntry.java
index 50aa939..45c846a 100644
--- a/src/main/java/org/gcube/portlets/user/td/csvexportwidget/client/CSVExportWizardTDEntry.java
+++ b/src/main/java/org/gcube/portlets/user/td/csvexportwidget/client/CSVExportWizardTDEntry.java
@@ -2,12 +2,14 @@ package org.gcube.portlets.user.td.csvexportwidget.client;
 
 import com.allen_sauer.gwt.log.client.Log;
 import com.google.gwt.core.client.EntryPoint;
+import com.google.web.bindery.event.shared.SimpleEventBus;
 
 public class CSVExportWizardTDEntry  implements EntryPoint  {
 
 	
 	public void onModuleLoad() {
-		CSVExportWizardTD  exportWizard= new CSVExportWizardTD("CSVExport"); 
+		SimpleEventBus eventBus=new SimpleEventBus();
+		CSVExportWizardTD  exportWizard= new CSVExportWizardTD("CSVExport",eventBus); 
 		Log.info(exportWizard.getId());
 	}
 }
diff --git a/src/main/java/org/gcube/portlets/user/td/csvexportwidget/client/CSVOperationInProgressCard.java b/src/main/java/org/gcube/portlets/user/td/csvexportwidget/client/CSVOperationInProgressCard.java
index 482b376..eb23083 100644
--- a/src/main/java/org/gcube/portlets/user/td/csvexportwidget/client/CSVOperationInProgressCard.java
+++ b/src/main/java/org/gcube/portlets/user/td/csvexportwidget/client/CSVOperationInProgressCard.java
@@ -8,6 +8,9 @@ import org.gcube.portlets.user.td.csvexportwidget.client.progress.CSVExportProgr
 import org.gcube.portlets.user.td.csvexportwidget.client.progress.CSVExportProgressUpdater;
 import org.gcube.portlets.user.td.gwtservice.client.rpc.TDGWTServiceAsync;
 import org.gcube.portlets.user.td.gwtservice.shared.csv.CSVExportSession;
+import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTSessionExpiredException;
+import org.gcube.portlets.user.td.widgetcommonevent.client.event.SessionExpiredEvent;
+import org.gcube.portlets.user.td.widgetcommonevent.client.type.SessionExpiredType;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 import org.gcube.portlets.user.td.wizardwidget.client.WizardCard;
 
@@ -98,11 +101,18 @@ public class CSVOperationInProgressCard extends WizardCard implements
 					}
 
 					public void onFailure(Throwable caught) {
-						showErrorAndHide(
-								"Error in exportCSV",
-								"An error occured in exportCSV: "
-										+ caught.getLocalizedMessage(), caught
-										.getStackTrace().toString(), caught);
+						if (caught instanceof TDGWTSessionExpiredException) {
+							getEventBus()
+									.fireEvent(
+											new SessionExpiredEvent(
+													SessionExpiredType.EXPIREDONSERVER));
+						} else {
+							showErrorAndHide(
+									"Error in exportCSV",
+									"An error occured in exportCSV: "
+											+ caught.getLocalizedMessage(),
+									caught.getStackTrace().toString(), caught);
+						}
 					}
 				});
 	}
@@ -186,13 +196,13 @@ public class CSVOperationInProgressCard extends WizardCard implements
 	@Override
 	public void operationGeneratingView() {
 		// TODO Auto-generated method stub
-		
+
 	}
 
 	@Override
 	public void operationValidate(float elaborated) {
 		// TODO Auto-generated method stub
-		
+
 	}
 
 }