Fatal error: Uncaught Error: Class "PhpCsFixer\Event\Event" not found in /home/vivliari/public_html/presta-validator/vendor/friendsofphp/php-cs-fixer/src/FixerFileProcessedEvent.php:24 Stack trace: #0 {main} thrown in /home/vivliari/public_html/presta-validator/vendor/friendsofphp/php-cs-fixer/src/FixerFileProcessedEvent.php on line 24