Fatal error: Uncaught Error: Class "PhpCsFixer\AbstractFixer" not found in /var/www/erp/spreadsheet/vendor/friendsofphp/php-cs-fixer/src/AbstractProxyFixer.php:23 Stack trace: #0 {main} thrown in /var/www/erp/spreadsheet/vendor/friendsofphp/php-cs-fixer/src/AbstractProxyFixer.php on line 23