[phpBB Debug] PHP Warning: in file [ROOT]/vendor/composer/ClassLoader.php on line 571: include(): Failed opening '[ROOT]/vendor/composer/../symfony/event-dispatcher/Event.php' for inclusion (include_path='.:/opt/cpanel/ea-php80/root/usr/share/pear')

Fatal error: Uncaught Error: Class "Symfony\Component\EventDispatcher\Event" not found in /home/arkdvd/public_html/phpbb/vendor/symfony/event-dispatcher/EventDispatcher.php:40 Stack trace: #0 /home/arkdvd/public_html/phpbb/phpbb/event/dispatcher.php(62): Symfony\Component\EventDispatcher\EventDispatcher->dispatch('core.common', NULL) #1 /home/arkdvd/public_html/phpbb/common.php(181): phpbb\event\dispatcher->dispatch('core.common') #2 /home/arkdvd/public_html/phpbb/viewtopic.php(20): include('/home/arkdvd/pu...') #3 {main} thrown in /home/arkdvd/public_html/phpbb/vendor/symfony/event-dispatcher/EventDispatcher.php on line 40