Fatal error: Uncaught Error: Class "Symfony\Component\Templating\Helper\Helper" not found in /home/flighto/e-commerce/vendor/sylius/sylius/src/Sylius/Bundle/CoreBundle/Templating/Helper/CheckoutStepsHelper.php:21 Stack trace: #0 /home/flighto/e-commerce/var/cache/dev/Container7Sf46Q4/CheckoutStepsHelper_87a88b2.php(4): include_once() #1 {main} thrown in /home/flighto/e-commerce/vendor/sylius/sylius/src/Sylius/Bundle/CoreBundle/Templating/Helper/CheckoutStepsHelper.php on line 21