Fatal error: Uncaught Error: Interface "Symfony\Component\Config\Definition\ConfigurationInterface" not found in /home/kakabapu/public_html/mysticker.kakabapu.com/vendor/symfony/swiftmailer-bundle/DependencyInjection/Configuration.php:26 Stack trace: #0 {main} thrown in /home/kakabapu/public_html/mysticker.kakabapu.com/vendor/symfony/swiftmailer-bundle/DependencyInjection/Configuration.php on line 26