Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\DependencyInjection\Extension" not found in /srv/disk3/2724534/www/transdoetaskforce.org/concrete/vendor/symfony/http-kernel/DependencyInjection/ConfigurableExtension.php:28 Stack trace: #0 {main} thrown in /srv/disk3/2724534/www/transdoetaskforce.org/concrete/vendor/symfony/http-kernel/DependencyInjection/ConfigurableExtension.php on line 28