Fatal error: Uncaught Error: Class 'Symfony\Component\HttpKernel\DataCollector\DataCollector' not found in /home/app/htdocs/lidia/vendor/symfony/http-kernel/DataCollector/EventDataCollector.php:24 Stack trace: #0 {main} thrown in /home/app/htdocs/lidia/vendor/symfony/http-kernel/DataCollector/EventDataCollector.php on line 24