Fatal error: Uncaught Error: Class "PhpCsFixer\Config" not found in /home/vivliari/public_html/presta-validator/vendor/prestashop/php-dev-tools/src/CsFixer/Config.php:9 Stack trace: #0 {main} thrown in /home/vivliari/public_html/presta-validator/vendor/prestashop/php-dev-tools/src/CsFixer/Config.php on line 9