diff --git a/ems-engine/src/main/java/it/integry/ems/system/service/SystemService.java b/ems-engine/src/main/java/it/integry/ems/system/service/SystemService.java
index e031cc5a1c..20747273f5 100644
--- a/ems-engine/src/main/java/it/integry/ems/system/service/SystemService.java
+++ b/ems-engine/src/main/java/it/integry/ems/system/service/SystemService.java
@@ -334,7 +334,7 @@ public class SystemService {
             for (String profile : profiles) {
                 String dbName = settingsModel.getDbNameFromProfileDb(profile);
 
-                //MD5 utilizzato da Ordikids
+                //MD5 utilizzato da Ordikids e Farmmes
                 if (UtilityString.isNullOrEmpty(password) && !UtilityString.isNullOrEmpty(md5User)) {
                     foundUser = userCacheService.retrieveUser(dbName, md5User);
                 } else
@@ -351,7 +351,7 @@ public class SystemService {
 
         if (foundUser == null) {
             logger.error(String.format("Credenziali non valide utente: %s ( %s) ",
-                    username, multiDBTransactionManager.getPrimaryConnection().getCatalog() + " )"));
+                    UtilityString.isNull(username,md5User), multiDBTransactionManager.getPrimaryConnection().getCatalog() + " )"));
             throw new Exception("Credenziali non valide");
         } else if (!foundUser.isAttivo()) {
             throw new Exception("Utente non attivo");