Fatal error: Uncaught Error: Class "Symfony\Contracts\EventDispatcher\Event" not found in /home2/zpcu9479/app.friwimap.com/vendor/symfony/security-http/Event/SwitchUserEvent.php:24 Stack trace: #0 {main} thrown in /home2/zpcu9479/app.friwimap.com/vendor/symfony/security-http/Event/SwitchUserEvent.php on line 24