diff --git a/classes/module/Module.php b/classes/module/Module.php
index edfb79546..b3780284c 100644
--- a/classes/module/Module.php
+++ b/classes/module/Module.php
@@ -837,7 +837,7 @@ abstract class ModuleCore
 	public static function getInstanceByName($module_name)
 	{
 		if (!Validate::isModuleName($module_name))
-			die(Tools::displayErrors());
+			die(Tools::displayError());
 		if (!isset(self::$_INSTANCE[$module_name]))
 		{
 			if (Tools::file_exists_cache(_PS_MODULE_DIR_.$module_name.'/'.$module_name.'.php'))
diff --git a/controllers/admin/AdminProductsController.php b/controllers/admin/AdminProductsController.php
index 9f318ce05..05c49cf6e 100644
--- a/controllers/admin/AdminProductsController.php
+++ b/controllers/admin/AdminProductsController.php
@@ -397,7 +397,7 @@ class AdminProductsControllerCore extends AdminController
 						$id_product = (int)Tools::getValue($this->identifier);
 						$res = $attachment->attachProduct($id_product);
 						if (!$res)
-							$this->errors[] = Tools::displayErrors('Unable to associate this attachment to product');
+							$this->errors[] = Tools::displayError('Unable to associate this attachment to product');
 					}
 				}
 				else