Fatal error: Uncaught Error: Class "Doctrine\Common\DataFixtures\Executor\AbstractExecutor" not found in /var/www/html/API_Forum/vendor/doctrine/data-fixtures/src/Executor/MultipleTransactionORMExecutor.php:9 Stack trace: #0 {main} thrown in /var/www/html/API_Forum/vendor/doctrine/data-fixtures/src/Executor/MultipleTransactionORMExecutor.php on line 9