[phpBB Debug] PHP Warning: in file [ROOT]/vendor/composer/ClassLoader.php on line 412: include([ROOT]/vendor/symfony/event-dispatcher/EventDispatcher.php): failed to open stream: No such file or directory
[phpBB Debug] PHP Warning: in file [ROOT]/vendor/composer/ClassLoader.php on line 412: include(): Failed opening '[ROOT]/vendor/symfony/event-dispatcher/EventDispatcher.php' for inclusion (include_path='.:/opt/phpfcgi-5.6.30/lib/php')

Fatal error: Class 'Symfony\Component\EventDispatcher\EventDispatcher' not found in /var/www/clients/client23/web24/web/vendor/symfony/event-dispatcher/ContainerAwareEventDispatcher.php on line 25