diff --git a/htdocs/adherents/fiche.php b/htdocs/adherents/fiche.php
index 2393de6ab00..4585b879574 100644
--- a/htdocs/adherents/fiche.php
+++ b/htdocs/adherents/fiche.php
@@ -285,6 +285,7 @@ if ($user->rights->adherent->creer && $_POST["action"] == 'add')
         }
         if ($num) {
             $error++;
+            $langs->load("errors");
             $errmsg .= $langs->trans("ErrorLoginAlreadyExists",$login)."<br>\n";
         }
     }
diff --git a/htdocs/install/etape5.php b/htdocs/install/etape5.php
index 0f6b73f6871..6d85dba5fef 100644
--- a/htdocs/install/etape5.php
+++ b/htdocs/install/etape5.php
@@ -147,7 +147,7 @@ if ($_POST["action"] == "set" || $_POST["action"] == "upgrade")
 	        {
 	            if ($newuser->error == 'ErrorLoginAlreadyExists')
 	            {
-					dolibarr_install_syslog('install/etape5.php ErrorLoginAlreadyExists', LOG_WARNING);
+					dolibarr_install_syslog('install/etape5.php AdminLoginAlreadyExists', LOG_WARNING);
 	                print '<br><div class="warning">'.$langs->trans("AdminLoginAlreadyExists",$_POST["login"])."</div><br>";
 	                $success = 1;
 	            }
diff --git a/htdocs/langs/en_US/errors.lang b/htdocs/langs/en_US/errors.lang
index e49ccef91cb..62b74bc61d4 100644
--- a/htdocs/langs/en_US/errors.lang
+++ b/htdocs/langs/en_US/errors.lang
@@ -1,4 +1,6 @@
 # Dolibarr language file - en_US - errors
+ErrorLoginAlreadyExists=Login %s already exists.
+ErrorGroupAlreadyExists=Group %s already exists.
 ErrorDuplicateTrigger=A trigger file with class nam '<b>%s</b>' is present sevaral times. Remove duplicate trigger file in directory '<b>%s</b>'.
 ErrorFailToDeleteFile=Failed to remove file '<b>%s</b>'.
 ErrorFailToCreateFile=Failed to create file '<b>%s</b>'.
diff --git a/htdocs/langs/en_US/users.lang b/htdocs/langs/en_US/users.lang
index 5dadc171c9e..8f534d97206 100755
--- a/htdocs/langs/en_US/users.lang
+++ b/htdocs/langs/en_US/users.lang
@@ -37,8 +37,6 @@ NewUser=New user
 CreateUser=Create user
 SearchAGroup=Search a group
 SearchAUser=Search a user
-ErrorGroupAlreadyExists=Group %s already exists.
-ErrorLoginAlreadyExists=Login %s already exists.
 ErrorFailedToSendPassword=Failed to send password
 LoginNotDefined=Login is not defined.
 NameNotDefined=Name is not defined.
diff --git a/htdocs/langs/fr_FR/errors.lang b/htdocs/langs/fr_FR/errors.lang
index 2c24844c999..71a1192f272 100644
--- a/htdocs/langs/fr_FR/errors.lang
+++ b/htdocs/langs/fr_FR/errors.lang
@@ -1,4 +1,6 @@
 # Dolibarr language file - fr_FR - errors
+ErrorLoginAlreadyExists=Le login %s existe déjà.
+ErrorGroupAlreadyExists=Le groupe %s existe déjà.
 ErrorDuplicateTrigger=Un fichier trigger de classe '<b>%s</b>' est present plusieurs fois. Supprimer le doublon du répertoire '<b>%s</b>'.
 ErrorFailToCreateFile=Echec de la création du fichier '<b>%s</b>'.
 ErrorFailToDeleteFile=Echec de l'effacement du fichier '<b>%s</b>'.
diff --git a/htdocs/langs/fr_FR/users.lang b/htdocs/langs/fr_FR/users.lang
index 5ae06d98d33..332a1803bb6 100755
--- a/htdocs/langs/fr_FR/users.lang
+++ b/htdocs/langs/fr_FR/users.lang
@@ -37,8 +37,6 @@ NewUser=Nouvel utilisateur
 CreateUser=Créer l'utilisateur
 SearchAGroup=Rechercher un groupe
 SearchAUser=Rechercher un utilisateur
-ErrorLoginAlreadyExists=Le login %s existe déjà.
-ErrorGroupAlreadyExists=Le groupe %s existe déjà.
 ErrorFailedToSendPassword=Echec de l'envoi du mot de passe
 LoginNotDefined=Le login n'est pas défini.
 NameNotDefined=Le nom n'est pas défini.
diff --git a/htdocs/langs/it_IT/errors.lang b/htdocs/langs/it_IT/errors.lang
index 30f3076f1a4..7bb9b64f7e5 100644
--- a/htdocs/langs/it_IT/errors.lang
+++ b/htdocs/langs/it_IT/errors.lang
@@ -1,4 +1,6 @@
 # Dolibarr language file - it_IT - errors          
+ErrorLoginAlreadyExists			    =Login %s esiste già. 
+ErrorGroupAlreadyExists			    =Gruppo %s esiste già. 
 ErrorDuplicateTrigger				   =Un trigger file con class name '<b> %s </b>' è presente più volte. Rimuovi file trigger duplicati dalla directory '<b> %s </b>'.
 ErrorFailToDeleteFile				   =Impossibile rimuovere il file '<b> %s </b>'.
 ErrorFailToCreateFile				   =Impossibile creare il file '<b> %s </b>'.
diff --git a/htdocs/langs/it_IT/users.lang b/htdocs/langs/it_IT/users.lang
index ecb09af7e45..489863ab5c6 100644
--- a/htdocs/langs/it_IT/users.lang
+++ b/htdocs/langs/it_IT/users.lang
@@ -37,8 +37,6 @@ NewUser					    =Nuovo utente
 CreateUser				    =Crea utente 
 SearchAGroup				    =Cerca un gruppo 
 SearchAUser				    =Cerca un utente 
-ErrorGroupAlreadyExists			    =Gruppo %s esiste già. 
-ErrorLoginAlreadyExists			    =Login %s esiste già. 
 ErrorFailedToSendPassword		    =Impossibile inviare la password 
 LoginNotDefined				    =Login non è definito. 
 NameNotDefined				    =Nome non è definito. 
diff --git a/htdocs/langs/pt_PT/errors.lang b/htdocs/langs/pt_PT/errors.lang
new file mode 100644
index 00000000000..4efc2266bd6
--- /dev/null
+++ b/htdocs/langs/pt_PT/errors.lang
@@ -0,0 +1,3 @@
+# Dolibarr language file - pt_PT - errors          
+ErrorLoginAlreadyExists=Login %s já existe.
+ErrorGroupAlreadyExists=Grupo %s já existe.
diff --git a/htdocs/langs/pt_PT/users.lang b/htdocs/langs/pt_PT/users.lang
index 26b3380c9c8..734ce0ef25d 100644
--- a/htdocs/langs/pt_PT/users.lang
+++ b/htdocs/langs/pt_PT/users.lang
@@ -27,8 +27,6 @@ NewUser=Novo utilizador
 CreateUser=Criar utilizador
 SearchAGroup=Procupar um grupo
 SearchAUser=Procurar um utilizador
-ErrorGroupAlreadyExists=Grupo %s já existe.
-ErrorLoginAlreadyExists=Login %s já existe.
 LoginNotDefined=Login não está definido.
 NameNotDefined=Nome não está definido.
 ListOfUsers=Lista de utilizadores
diff --git a/htdocs/user/fiche.php b/htdocs/user/fiche.php
index 4be05987a23..2f018a67367 100644
--- a/htdocs/user/fiche.php
+++ b/htdocs/user/fiche.php
@@ -175,10 +175,7 @@ if ($_POST["action"] == 'add' && $canadduser)
 		else
 		{
 			$db->rollback();
-				
-			//$message='<div class="error">'.$langs->trans("ErrorLoginAlreadyExists",$edituser->login).'</div>';
 			$message='<div class="error">'.$edituser->error.'</div>';
-				
 			$action="create";       // Go back to create page
 		}
 
@@ -252,6 +249,7 @@ if ($_POST["action"] == 'update' && ! $_POST["cancel"] && $caneditfield)
 		{
 			if ($db->errno() == 'DB_ERROR_RECORD_ALREADY_EXISTS')
 			{
+				$langs->load("errors");
 				$message.='<div class="error">'.$langs->trans("ErrorLoginAlreadyExists",$edituser->login).'</div>';
 			}
 			else
diff --git a/htdocs/user/group/fiche.php b/htdocs/user/group/fiche.php
index d2a4d4c10f6..3da40e93a8b 100644
--- a/htdocs/user/group/fiche.php
+++ b/htdocs/user/group/fiche.php
@@ -85,8 +85,8 @@ if ($_POST["action"] == 'add')
         }
         else
         {
-            $db->rollback();
-
+			$langs->trans("errors");
+        	$db->rollback();
             $message='<div class="error">'.$langs->trans("ErrorGroupAlreadyExists",$editgroup->nom).'</div>';
             $action="create";       // Go back to create page
         }