Fatal error: Uncaught Error: Class "Symfony\Component\Translation\Catalogue\AbstractOperation" not found in /home/www/swittelecom.com/test/laravel/vendor/symfony/translation/Catalogue/MergeOperation.php:23 Stack trace: #0 {main} thrown in /home/www/swittelecom.com/test/laravel/vendor/symfony/translation/Catalogue/MergeOperation.php on line 23