Fatal error: Uncaught Error: Class 'Symfony\Component\EventDispatcher\Event' not found in /home/eberhardschwarze/public_html/vendor/nelmio/security-bundle/ContentSecurityPolicy/Violation/Event.php:16
Stack trace:
#0 {main}
thrown in /home/eberhardschwarze/public_html/vendor/nelmio/security-bundle/ContentSecurityPolicy/Violation/Event.php on line 16