Fatal error: Uncaught Error: Interface 'Symfony\Component\Config\Definition\ConfigurationInterface' not found in /var/www/vhosts/kavli-live/vendor/symfony/swiftmailer-bundle/Symfony/Bundle/SwiftmailerBundle/DependencyInjection/Configuration.php:25 Stack trace: #0 {main} thrown in /var/www/vhosts/kavli-live/vendor/symfony/swiftmailer-bundle/Symfony/Bundle/SwiftmailerBundle/DependencyInjection/Configuration.php on line 25