Fatal error: Uncaught Error: Class "Symfony\Component\DependencyInjection\Extension\Extension" not found in /home/astechc1/public_html/vendor/helios-ag/fm-elfinder-bundle/src/DependencyInjection/FMElfinderExtension.php:10 Stack trace: #0 {main} thrown in /home/astechc1/public_html/vendor/helios-ag/fm-elfinder-bundle/src/DependencyInjection/FMElfinderExtension.php on line 10