دیباگ رو فعال کردم و موقع برگشت این دفعه این خطا رو داد: [PrestaShopException] Property OrderDetail->reduction_amount is not valid at line 837 in file classes/ObjectModel.php 831. 832. $message = $this->validateField($field, $this->$field); 833. if ($message !== true) 834. { 835. if ($die) 836. throw new PrestaShopException($message); 837. return $error_return ? $message : false; 838. } 839. } 840. 841. return true; ObjectModelCore->validateFields - [line 255 - classes/ObjectModel.php] ObjectModelCore->getFields - [line 455 - classes/ObjectModel.php] ObjectModelCore->add - [line 417 - classes/ObjectModel.php] - [2 Arguments] ObjectModelCore->save - [line 589 - classes/order/OrderDetail.php] OrderDetailCore->create - [line 613 - classes/order/OrderDetail.php] - [7 Arguments] OrderDetailCore->createList - [line 292 - classes/PaymentModule.php] - [7 Arguments] PaymentModuleCore->validateOrder - [line 77 - modules/bankmellat/controllers/front/validation.php] - [9 Arguments] BankMellatValidationModuleFrontController->initContent - [line 180 - classes/controller/Controller.php] ControllerCore->run - [line 373 - classes/Dispatcher.php] DispatcherCore->dispatch - [line 28 - index.php]