Fatal error: Uncaught Error: Class "Symfony\Component\Routing\Loader\AttributeFileLoader" not found in /home/appdemo/public_html/samena-mailer/vendor/symfony/routing/Loader/AttributeDirectoryLoader.php:24 Stack trace: #0 {main} thrown in /home/appdemo/public_html/samena-mailer/vendor/symfony/routing/Loader/AttributeDirectoryLoader.php on line 24