// Context part 31

controllers/OrderController.php

@@ -112,7 +112,7 @@ class OrderControllerCore extends ParentOrderController
 					if ($this->context->customer->is_guest)
 					{
 						$email = $this->context->customer->email;
-						$this->context->cookie->logout(); // If guest we clear the cookie for security reason
+						$this->context->customer->logout(); // If guest we clear the cookie for security reason
 						Tools::redirect('index.php?controller=guest-tracking&id_order='.(int)$id_order.'&email='.urlencode($email));
 					}
 					else