diff --git a/src/main/java/org/gcube/portlets/user/td/columnwidget/client/progress/ChangeColumnTypeProgressDialog.java b/src/main/java/org/gcube/portlets/user/td/columnwidget/client/progress/ChangeColumnTypeProgressDialog.java
index 3b026fb..ef4e117 100644
--- a/src/main/java/org/gcube/portlets/user/td/columnwidget/client/progress/ChangeColumnTypeProgressDialog.java
+++ b/src/main/java/org/gcube/portlets/user/td/columnwidget/client/progress/ChangeColumnTypeProgressDialog.java
@@ -106,18 +106,7 @@ public class ChangeColumnTypeProgressDialog extends Window implements ChangeColu
 		public void operationFailed(Throwable caught, String reason,
 				String failureDetails) {
 			ok.setVisible(true);
-			this.trId=null;
-			AlertMessageBox d = new AlertMessageBox("Error in Change Column Type", reason);
-			d.addHideHandler(new HideHandler() {
-
-				public void onHide(HideEvent event) {
-					
-				}
-
-			});
-			d.show();
-			
-			
+			this.trId=null;	
 		}
 		
 		public void updateInvocation(){
diff --git a/src/main/java/org/gcube/portlets/user/td/columnwidget/client/progress/ChangeColumnTypeProgressUpdater.java b/src/main/java/org/gcube/portlets/user/td/columnwidget/client/progress/ChangeColumnTypeProgressUpdater.java
index 9d1864f..ebbf5fc 100644
--- a/src/main/java/org/gcube/portlets/user/td/columnwidget/client/progress/ChangeColumnTypeProgressUpdater.java
+++ b/src/main/java/org/gcube/portlets/user/td/columnwidget/client/progress/ChangeColumnTypeProgressUpdater.java
@@ -105,18 +105,14 @@ public class ChangeColumnTypeProgressUpdater extends Timer {
 			failure = "Failed Client Library Chanche Column Type";
 			details = "Error Change Column Type";
 		}
-		fireOperationFailed(th, failure, details);
 
 		AlertMessageBox d = new AlertMessageBox("Error in Change Column Type", details);
 		d.addHideHandler(new HideHandler() {
-
 			public void onHide(HideEvent event) {
-				
 			}
-
 		});
 		d.show();
-
+		fireOperationFailed(th, failure, details);
 	}
 
 	protected String getStack(Throwable e) {
diff --git a/src/main/java/org/gcube/portlets/user/td/columnwidget/client/progress/DeleteColumnProgressDialog.java b/src/main/java/org/gcube/portlets/user/td/columnwidget/client/progress/DeleteColumnProgressDialog.java
index 242f0a7..c3ce91c 100644
--- a/src/main/java/org/gcube/portlets/user/td/columnwidget/client/progress/DeleteColumnProgressDialog.java
+++ b/src/main/java/org/gcube/portlets/user/td/columnwidget/client/progress/DeleteColumnProgressDialog.java
@@ -107,16 +107,6 @@ public class DeleteColumnProgressDialog extends Window implements DeleteColumnPr
 				String failureDetails) {
 			ok.setVisible(true);
 			this.trId=null;
-			AlertMessageBox d = new AlertMessageBox("Error in Delete Column", reason);
-			d.addHideHandler(new HideHandler() {
-
-				public void onHide(HideEvent event) {
-					
-				}
-
-			});
-			d.show();
-
 		}
 		
 		public void updateInvocation(){
diff --git a/src/main/java/org/gcube/portlets/user/td/columnwidget/client/progress/DeleteColumnProgressUpdater.java b/src/main/java/org/gcube/portlets/user/td/columnwidget/client/progress/DeleteColumnProgressUpdater.java
index 5290908..71c9943 100644
--- a/src/main/java/org/gcube/portlets/user/td/columnwidget/client/progress/DeleteColumnProgressUpdater.java
+++ b/src/main/java/org/gcube/portlets/user/td/columnwidget/client/progress/DeleteColumnProgressUpdater.java
@@ -105,18 +105,14 @@ public class DeleteColumnProgressUpdater extends Timer {
 			failure = "Failed Client Library Delete Column";
 			details = "Error Delete Column";
 		}
-		fireOperationFailed(th, failure, details);
-
+		
 		AlertMessageBox d = new AlertMessageBox("Error in Delete Column", details);
 		d.addHideHandler(new HideHandler() {
-
-			public void onHide(HideEvent event) {
-				
+			public void onHide(HideEvent event) {	
 			}
-
 		});
 		d.show();
-
+		fireOperationFailed(th, failure, details);
 	}
 
 	protected String getStack(Throwable e) {