Fatal error: Uncaught Error: Class "Symfony\Component\ErrorHandler\Error\FatalError" not found in /usr/www/unityweb/public/hms/vendor/symfony/error-handler/Error/OutOfMemoryError.php:21 Stack trace: #0 {main} thrown in /usr/www/unityweb/public/hms/vendor/symfony/error-handler/Error/OutOfMemoryError.php on line 21