Fatal error: Uncaught Error: Class "Symfony\Component\DependencyInjection\Loader\Configurator\AbstractServiceConfigurator" not found in /home/matrixweb/public_html/whmcs2022/whmcs/vendor/symfony/dependency-injection/Loader/Configurator/AliasConfigurator.php:19 Stack trace: #0 {main} thrown in /home/matrixweb/public_html/whmcs2022/whmcs/vendor/symfony/dependency-injection/Loader/Configurator/AliasConfigurator.php on line 19