diff --git a/htdocs/commande/class/commande.class.php b/htdocs/commande/class/commande.class.php
index e554990892c..268459a3c12 100644
--- a/htdocs/commande/class/commande.class.php
+++ b/htdocs/commande/class/commande.class.php
@@ -239,7 +239,8 @@ class Commande extends CommonOrder
             }
             else
 			{
-            	dol_print_error($this->db,get_class($this)."::getNextNumRef ".$obj->error);
+				$this->error=$obj->error;
+            	//dol_print_error($this->db,get_class($this)."::getNextNumRef ".$obj->error);
             	return "";
             }
         }
diff --git a/htdocs/compta/facture/class/facture.class.php b/htdocs/compta/facture/class/facture.class.php
index f15526f34ba..623a355023e 100644
--- a/htdocs/compta/facture/class/facture.class.php
+++ b/htdocs/compta/facture/class/facture.class.php
@@ -3003,7 +3003,8 @@ class Facture extends CommonInvoice
 			 * set up mask.
 			 */
 			if ($mode != 'last' && !$numref) {
-				dol_print_error($this->db,"Facture::getNextNumRef ".$obj->error);
+				$this->error=$obj->error;
+				//dol_print_error($this->db,"Facture::getNextNumRef ".$obj->error);
 				return "";
 			}
 
diff --git a/htdocs/fourn/class/fournisseur.facture.class.php b/htdocs/fourn/class/fournisseur.facture.class.php
index bc7f5bfdca6..27b7627f450 100644
--- a/htdocs/fourn/class/fournisseur.facture.class.php
+++ b/htdocs/fourn/class/fournisseur.facture.class.php
@@ -1627,6 +1627,7 @@ class FactureFournisseur extends CommonInvoice
         }
         else
        {
+       		$this->error=$obj->error;
         	//dol_print_error($db,get_class($this)."::getNextNumRef ".$obj->error);
         	return false;
         }