Fatal error: Uncaught Error: Class "Symfony\Component\Filesystem\Exception\IOException" not found in /home/matrixweb/public_html/whmcs2022/whmcs/vendor/symfony/filesystem/Exception/FileNotFoundException.php:20 Stack trace: #0 {main} thrown in /home/matrixweb/public_html/whmcs2022/whmcs/vendor/symfony/filesystem/Exception/FileNotFoundException.php on line 20