Fatal error: Uncaught Error: Class "Symfony\Component\CssSelector\XPath\Extension\AbstractExtension" not found in /home/pevo0181/public_html/mode/school_mode/vendor/symfony/css-selector/XPath/Extension/HtmlExtension.php:29 Stack trace: #0 {main} thrown in /home/pevo0181/public_html/mode/school_mode/vendor/symfony/css-selector/XPath/Extension/HtmlExtension.php on line 29