diff --git a/htdocs/adherents/subscription.php b/htdocs/adherents/subscription.php
index 06b8cecf7f3..f2cb8c440c2 100644
--- a/htdocs/adherents/subscription.php
+++ b/htdocs/adherents/subscription.php
@@ -890,7 +890,10 @@ if ($rowid > 0) {
                     if (empty($conf->global->ADHERENT_VAT_FOR_SUBSCRIPTIONS) || $conf->global->ADHERENT_VAT_FOR_SUBSCRIPTIONS != 'defaultforfoundationcountry') print '. <span class="opacitymedium">'.$langs->trans("NoVatOnSubscription", 0).'</span>';
 					if (!empty($conf->global->ADHERENT_PRODUCT_ID_FOR_SUBSCRIPTIONS) && (!empty($conf->product->enabled) || !empty($conf->service->enabled))) {
 						$prodtmp = new Product($db);
-						$prodtmp->fetch($conf->global->ADHERENT_PRODUCT_ID_FOR_SUBSCRIPTIONS);
+						$result = $prodtmp->fetch($conf->global->ADHERENT_PRODUCT_ID_FOR_SUBSCRIPTIONS);
+						if ($result < 0) {
+							setEventMessage($prodtmp->error, 'errors');
+						}
 						print '. '.$langs->transnoentitiesnoconv("ADHERENT_PRODUCT_ID_FOR_SUBSCRIPTIONS", $prodtmp->getNomUrl(1)); // must use noentitiesnoconv to avoid to encode html into getNomUrl of product
 					}
                     print '<br>';
@@ -912,7 +915,10 @@ if ($rowid > 0) {
                     if (empty($conf->global->ADHERENT_VAT_FOR_SUBSCRIPTIONS) || $conf->global->ADHERENT_VAT_FOR_SUBSCRIPTIONS != 'defaultforfoundationcountry') print '. <span class="opacitymedium">'.$langs->trans("NoVatOnSubscription", 0).'</span>';
 					if (!empty($conf->global->ADHERENT_PRODUCT_ID_FOR_SUBSCRIPTIONS) && (!empty($conf->product->enabled) || !empty($conf->service->enabled))) {
 						$prodtmp = new Product($db);
-						$prodtmp->fetch($conf->global->ADHERENT_PRODUCT_ID_FOR_SUBSCRIPTIONS);
+						$result = $prodtmp->fetch($conf->global->ADHERENT_PRODUCT_ID_FOR_SUBSCRIPTIONS);
+						if ($result < 0) {
+							setEventMessage($prodtmp->error, 'errors');
+						}
 						print '. '.$langs->transnoentitiesnoconv("ADHERENT_PRODUCT_ID_FOR_SUBSCRIPTIONS", $prodtmp->getNomUrl(1)); // must use noentitiesnoconv to avoid to encode html into getNomUrl of product
 					}
                     print '<br>';
diff --git a/htdocs/api/class/api_documents.class.php b/htdocs/api/class/api_documents.class.php
index ce734aadeb5..69fef80fd6b 100644
--- a/htdocs/api/class/api_documents.class.php
+++ b/htdocs/api/class/api_documents.class.php
@@ -419,8 +419,10 @@ class Documents extends DolibarrApi
 
 			$object = new Product($this->db);
 			$result = $object->fetch($id, $ref);
-			if (!$result) {
+			if ($result==0) {
 				throw new RestException(404, 'Product not found');
+			} elseif ($result<0) {
+				throw new RestException(500, 'Error while fetching object: '.$object->error);
 			}
 
 			$upload_dir = $conf->product->multidir_output[$object->entity].'/'.get_exdir(0, 0, 0, 0, $object, 'product').dol_sanitizeFileName($object->ref);
@@ -630,7 +632,7 @@ class Documents extends DolibarrApi
 			    }
 				elseif ($result < 0)
 				{
-					throw new RestException(500, 'Error while fetching object.');
+					throw new RestException(500, 'Error while fetching object: '.$object->error);
 				}
 			}
 
diff --git a/htdocs/barcode/printsheet.php b/htdocs/barcode/printsheet.php
index f6dea256f6a..1ac908f361a 100644
--- a/htdocs/barcode/printsheet.php
+++ b/htdocs/barcode/printsheet.php
@@ -57,9 +57,11 @@ $thirdpartytmp = new Societe($db);
 if (GETPOST('submitproduct') && GETPOST('submitproduct'))
 {
 	$action = ''; // We reset because we don't want to build doc
-	if (GETPOST('productid') > 0)
-	{
-		$producttmp->fetch(GETPOST('productid'));
+	if (GETPOST('productid') > 0) {
+		$result = $producttmp->fetch(GETPOST('productid'));
+		if ($result < 0) {
+			setEventMessage($producttmp->error, 'errors');
+		}
 		$forbarcode = $producttmp->barcode;
 		$fk_barcode_type = $producttmp->barcode_type;
 
diff --git a/htdocs/bom/class/bom.class.php b/htdocs/bom/class/bom.class.php
index 4a1c4e2f179..f6fe33aa932 100644
--- a/htdocs/bom/class/bom.class.php
+++ b/htdocs/bom/class/bom.class.php
@@ -1004,7 +1004,11 @@ class BOM extends CommonObject
 
 		foreach ($this->lines as &$line) {
 			$tmpproduct = new Product($this->db);
-			$tmpproduct->fetch($line->fk_product);
+			$result= $tmpproduct->fetch($line->fk_product);
+			if ($result < 0) {
+				$this->error=$tmpproduct->error;
+				return -1;
+			}
 			$line->unit_cost = price2num((!empty($tmpproduct->cost_price)) ? $tmpproduct->cost_price : $tmpproduct->pmp);
 			if (empty($line->unit_cost)) {
 				if ($productFournisseur->find_min_price_product_fournisseur($line->fk_product) > 0)
diff --git a/htdocs/bom/tpl/linkedobjectblock.tpl.php b/htdocs/bom/tpl/linkedobjectblock.tpl.php
index d6b8ebf9a7c..45340577228 100644
--- a/htdocs/bom/tpl/linkedobjectblock.tpl.php
+++ b/htdocs/bom/tpl/linkedobjectblock.tpl.php
@@ -52,8 +52,15 @@ foreach ($linkedObjectBlock as $key => $objectlink)
     }
     echo '</td>';
     echo '<td class="linkedcol-name nowraponall" >'.$objectlink->getNomUrl(1).'</td>';
-    $product_static->fetch($objectlink->fk_product);
-    echo '<td class="linkedcol-ref" align="center">'.$product_static->getNomUrl(1).'</td>';
+
+    echo '<td class="linkedcol-ref" align="center">';
+	$result=$product_static->fetch($objectlink->fk_product);
+	if ($result<0) {
+		setEventMessage($product_static->error, 'errors');
+	} elseif ($result>0)  {
+		$product_static->getNomUrl(1);
+	}
+    print '</td>';
     echo '<td class="linkedcol-date" align="center">'.dol_print_date($objectlink->date_creation, 'day').'</td>';
     echo '<td class="linkedcol-amount right">';
     if ($user->rights->commande->lire) {
diff --git a/htdocs/product/class/product.class.php b/htdocs/product/class/product.class.php
index 07450eef805..33733a8901d 100644
--- a/htdocs/product/class/product.class.php
+++ b/htdocs/product/class/product.class.php
@@ -2209,7 +2209,7 @@ class Product extends CommonObject
                             }
                             }*/
                         } else {
-                            dol_print_error($this->db);
+	                        $this->error=$this->db->lasterror;
                             return -1;
                         }
                     }
@@ -2254,12 +2254,12 @@ class Product extends CommonObject
                                 }
                                 $this->prices_by_qty_list[0] = $resultat;
                             } else {
-                                    dol_print_error($this->db);
-                                    return -1;
+	                            $this->error=$this->db->lasterror;
+                                return -1;
                             }
                         }
                     } else {
-                        dol_print_error($this->db);
+	                    $this->error=$this->db->lasterror;
                         return -1;
                     }
                 } elseif (!empty($conf->global->PRODUIT_CUSTOMER_PRICES_BY_QTY_MULTIPRICES) && empty($ignore_price_load))    // prices per customer and quantity
@@ -2313,12 +2313,12 @@ class Product extends CommonObject
                                     }
                                     $this->prices_by_qty_list[$i] = $resultat;
                                 } else {
-                                    dol_print_error($this->db);
+	                                $this->error=$this->db->lasterror;
                                     return -1;
                                 }
                             }
                         } else {
-                            dol_print_error($this->db);
+	                        $this->error=$this->db->lasterror;
                             return -1;
                         }
                     }
@@ -2345,7 +2345,7 @@ class Product extends CommonObject
                 return 0;
             }
         } else {
-            dol_print_error($this->db);
+	        $this->error=$this->db->lasterror;
             return -1;
         }
     }