// Fixed #PSTEST-643

classes/Product.php

@@ -658,7 +658,8 @@ class ProductCore extends ObjectModel
 			!$this->deleteSceneProducts() ||
 			!$this->deleteSearchIndexes() ||
 			!$this->deleteAccessories() ||
-			!$this->deleteFromAccessories())
+			!$this->deleteFromAccessories() ||
+			!$this->deleteFromSupplier())
 		return false;
 
 		if ($id = ProductDownload::getIdFromIdProduct($this->id))
@@ -680,6 +681,16 @@ class ProductCore extends ObjectModel
 		return $return;
 	}
 
+	public function deleteFromSupplier()
+	{
+		$return = Db::getInstance()->execute(
+			'DELETE FROM `'._DB_PREFIX_.'product_supplier`
+			WHERE `id_product` = '.(int)$this->id
+		);
+
+		return $return;
+	}
+
 	/**
 	 * addToCategories add this product to the category/ies if not exists.
 	 *

controllers/admin/AdminSuppliersController.php

@@ -392,8 +392,11 @@ class AdminSuppliersControllerCore extends AdminController
 			else
 			{
 				$address = new Address($obj->id_address);
-				$address->deleted = 1;
+				if (Validate::isLoadedObject($address))
-				$address->save();
+				{
+					$address->deleted = 1;
+					$address->save();
+				}
 				return parent::postProcess();
 			}
 		}