diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/TDGWTServiceImpl.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/TDGWTServiceImpl.java
index 0f37a45..4371f70 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/TDGWTServiceImpl.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/TDGWTServiceImpl.java
@@ -579,6 +579,7 @@ public class TDGWTServiceImpl extends RemoteServiceServlet implements
 								importMonitor.setError(new Throwable(task.getResult()
 										.getException().toString()));
 							} else {
+								logger.debug("Task exception: Error In Import");
 								importMonitor.setError(new Throwable(
 										"Error In Import"));
 							}
@@ -919,6 +920,7 @@ public class TDGWTServiceImpl extends RemoteServiceServlet implements
 								importMonitor.setError(new Throwable(task.getResult()
 										.getException().toString()));
 							} else {
+								logger.debug("Task exception: Error In Import");
 								importMonitor.setError(new Throwable(
 										"Error In Import"));
 							}