diff --git a/src/main/java/eu/dnetlib/repo/manager/service/RepositoryServiceImpl.java b/src/main/java/eu/dnetlib/repo/manager/service/RepositoryServiceImpl.java
index 1162ecb..37341ab 100644
--- a/src/main/java/eu/dnetlib/repo/manager/service/RepositoryServiceImpl.java
+++ b/src/main/java/eu/dnetlib/repo/manager/service/RepositoryServiceImpl.java
@@ -657,8 +657,8 @@ LOGGER.debug("json: " + jsonArray);
         try {
             emailUtils.sendAdminRegisterInterfaceEmail(e, comment, repositoryInterface, SecurityContextHolder.getContext().getAuthentication());
             emailUtils.sendUserRegisterInterfaceEmail(e, comment, repositoryInterface, SecurityContextHolder.getContext().getAuthentication());
-        } catch (Exception e) {
-            LOGGER.error("Error sending emails: " + e);
+        } catch (Exception ex) {
+            LOGGER.error("Error sending emails: " + ex);
         }
 
         submitInterfaceValidation(e, registeredBy, repositoryInterface, false);