Fatal error: Uncaught Error: Interface 'Symfony\Component\DependencyInjection\Extension\ExtensionInterface' not found in /home/almasai/www/people/_old_site/vendor/symfony/src/Symfony/Component/HttpKernel/DependencyInjection/Extension.php:24 Stack trace: #0 {main} thrown in /home/almasai/www/people/_old_site/vendor/symfony/src/Symfony/Component/HttpKernel/DependencyInjection/Extension.php on line 24