Fatal error: Uncaught Error: Class "Twig\Extension\AbstractExtension" not found in /home/zdpktgd/ptc/vendor.old/symfony/twig-bridge/Extension/ImportMapExtension.php:20 Stack trace: #0 {main} thrown in /home/zdpktgd/ptc/vendor.old/symfony/twig-bridge/Extension/ImportMapExtension.php on line 20