Fatal error: Uncaught Error: Class "Twig\Extension\AbstractExtension" not found in /home/astechc1/public_html/vendor/vich/uploader-bundle/src/Twig/Extension/UploaderExtension.php:15 Stack trace: #0 {main} thrown in /home/astechc1/public_html/vendor/vich/uploader-bundle/src/Twig/Extension/UploaderExtension.php on line 15