[phpBB Debug] PHP Warning: in file [ROOT]/vendor/composer/ClassLoader.php on line 478: include(): Failed opening '[ROOT]/vendor/composer/../symfony/event-dispatcher/Event.php' for inclusion (include_path='.:/opt/alt/php74/usr/share/pear')

Fatal error: Uncaught Error: Class 'Symfony\Component\EventDispatcher\Event' not found in /home/frutt886/public_html/forum/vendor/symfony/event-dispatcher/EventDispatcher.php:40 Stack trace: #0 /home/frutt886/public_html/forum/phpbb/event/dispatcher.php(62): Symfony\Component\EventDispatcher\EventDispatcher->dispatch('core.common', NULL) #1 /home/frutt886/public_html/forum/common.php(166): phpbb\event\dispatcher->dispatch('core.common') #2 /home/frutt886/public_html/forum/posting.php(20): include('/home/frutt886/...') #3 {main} thrown in /home/frutt886/public_html/forum/vendor/symfony/event-dispatcher/EventDispatcher.php on line 40