Fatal error: Uncaught Error: Class "Symfony\Flex\Configurator\AbstractConfigurator" not found in /home/leathr/event.lea.therasse.mmi-velizy.fr/mmievent3/vendor/symfony/flex/src/Configurator/CopyFromPackageConfigurator.php:21 Stack trace: #0 {main} thrown in /home/leathr/event.lea.therasse.mmi-velizy.fr/mmievent3/vendor/symfony/flex/src/Configurator/CopyFromPackageConfigurator.php on line 21