Fatal error: Uncaught Error: Class "Sylius\Component\Resource\Exception\UpdateHandlingException" not found in /home/flighto/e-commerce/vendor/sylius/resource-bundle/src/Component/Exception/RaceConditionException.php:16 Stack trace: #0 {main} thrown in /home/flighto/e-commerce/vendor/sylius/resource-bundle/src/Component/Exception/RaceConditionException.php on line 16