Fatal error: Uncaught Error: Class 'Symfony\Component\DomCrawler\Crawler' not found in /var/www/html/vendor/symfony/dom-crawler/Tests/ClassThatInheritCrawler.php:16 Stack trace: #0 {main} thrown in /var/www/html/vendor/symfony/dom-crawler/Tests/ClassThatInheritCrawler.php on line 16