Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\DataCollector\DataCollector" not found in /home/zdpktgd/ptc/vendor.old/symfony/http-kernel/DataCollector/RouterDataCollector.php:22 Stack trace: #0 {main} thrown in /home/zdpktgd/ptc/vendor.old/symfony/http-kernel/DataCollector/RouterDataCollector.php on line 22