Fatal error: Uncaught Error: Class "Symfony\Bundle\FrameworkBundle\Controller\AbstractController" not found in /home/astechc1/public_html/vendor/helios-ag/fm-elfinder-bundle/src/Controller/ElFinderController.php:21 Stack trace: #0 {main} thrown in /home/astechc1/public_html/vendor/helios-ag/fm-elfinder-bundle/src/Controller/ElFinderController.php on line 21