Fatal error: Uncaught Error: Class "Symfony\Contracts\EventDispatcher\Event" not found in /home/pataplou/www/patrick/pataplouf/vendor/symfony/security-http/Event/TokenDeauthenticatedEvent.php:31 Stack trace: #0 {main} thrown in /home/pataplou/www/patrick/pataplouf/vendor/symfony/security-http/Event/TokenDeauthenticatedEvent.php on line 31