Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\DataCollector\DataCollector" not found in /home2/zpcu9479/app.gennia.fr/vendor/symfony/framework-bundle/DataCollector/AbstractDataCollector.php:19 Stack trace: #0 {main} thrown in /home2/zpcu9479/app.gennia.fr/vendor/symfony/framework-bundle/DataCollector/AbstractDataCollector.php on line 19