500 server error after checkout

[mobimik]

Sorry, I dont have so much experience in programming.

So, I have problem with error appearance after checkout in my shop http://mobimik.kiev.ua

 

Could you help me what to do to fix it?

 

Error log:

 

[PrestaShopException]

Can't load Order status
at line 174 in file classes/PaymentModule.php

168.
169.         $order_status = new OrderState((int)$id_order_state, (int)$this->context->language->id);
170.         if (!Validate::isLoadedObject($order_status))
171.         {
172.             PrestaShopLogger::addLog('PaymentModule::validateOrder - Order Status cannot be loaded', 3, null, 'Cart', (int)$id_cart, true);
173.             throw new PrestaShopException('Can\'t load Order status');
174.         }
175.
176.         if (!$this->active)
177.         {
178.             PrestaShopLogger::addLog('PaymentModule::validateOrder - Module is not active', 3, null, 'Cart', (int)$id_cart, true);

• PaymentModuleCore->validateOrder - [line 59 - modules/cashondelivery/controllers/front/validation.php] - [9 Arguments]
  53.
  54.         if (Tools::getValue('confirm'))
  55.         {
  56.             $customer = new Customer((int)$this->context->cart->id_customer);
  57.             $total = $this->context->cart->getOrderTotal(true, Cart::BOTH);
  58.             $this->module->validateOrder((int)$this->context->cart->id, Configuration::get('PS_OS_PREPARATION'), $total, $this->module->displayName, null, array(), null, false, $customer->secure_key);
  59.             Tools::redirectLink(__PS_BASE_URI__.'order-confirmation.php?key='.$customer->secure_key.'&id_cart='.(int)$this->context->cart->id.'&id_module='.(int)$this->module->id.'&id_order='.(int)$this->module->currentOrder);
  60.         }
  61.     }
  62.
  63.     /**
• CashondeliveryValidationModuleFrontController->postProcess - [line 171 - classes/controller/Controller.php]
  165.             // setMedia MUST be called before postProcess
  166.             if (!$this->content_only && ($this->display_header || (isset($this->className) && $this->className)))
  167.                 $this->setMedia();
  168.
  169.             // postProcess handles ajaxProcess
  170.             $this->postProcess();
  171.
  172.             if (!empty($this->redirect_after))
  173.                 $this->redirect();
  174.
  175.             if (!$this->content_only && ($this->display_header || (isset($this->className) && $this->className)))
• ControllerCore->run - [line 373 - classes/Dispatcher.php]
  367.             // Execute hook dispatcher
  368.             if (isset($params_hook_action_dispatcher))
  369.                 Hook::exec('actionDispatcher', $params_hook_action_dispatcher);
  370.
  371.             // Running controller
  372.             $controller->run();
  373.         }
  374.         catch (PrestaShopException $e)
  375.         {
  376.             $e->displayMessage();
  377.         }
• DispatcherCore->dispatch - [line 28 - index.php]
  22. * @license http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
  23. * International Registered Trademark & Property of PrestaShop SA
  24. */
  25.
  26. require(dirname(__FILE__).'/config/config.inc.php');
  27. Dispatcher::getInstance()->dispatch();

[El Patron]

using phpmyadmin open your shop dataabase

 

open table ps_configuration

 

look for this PS_OS_PREPARATION in ps_configuration table

 

see if defined or if there are two(2) definitions for PS_OS_PREPARATION