Fatal error: Uncaught Error: Interface "Symfony\Component\Yaml\Exception\ExceptionInterface" not found in /home/mboption/public_html/forums/vendor/symfony/yaml/Symfony/Component/Yaml/Exception/RuntimeException.php:21 Stack trace: #0 {main} thrown in /home/mboption/public_html/forums/vendor/symfony/yaml/Symfony/Component/Yaml/Exception/RuntimeException.php on line 21