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

Fatal error: Uncaught Error: Interface "Symfony\Component\EventDispatcher\EventSubscriberInterface" not found in /home/arkdvd/public_html/phpbb/ext/dmzx/mchat/event/main_listener.php:23 Stack trace: #0 /home/arkdvd/public_html/phpbb/phpbb/class_loader.php(160): require() #1 /home/arkdvd/public_html/phpbb/cache/production/container_4335734bbdd20f586549a504dff5f80c.php(2457): phpbb\class_loader->load_class('\\dmzx\\mchat\\eve...') #2 /home/arkdvd/public_html/phpbb/cache/production/container_4335734bbdd20f586549a504dff5f80c.php(2257): phpbb_cache_container->getDmzx_Mchat_Main_ListenerService() #3 /home/arkdvd/public_html/phpbb/vendor/symfony/event-dispatcher/EventDispatcher.php(231): phpbb_cache_container->{closure}() #4 /home/arkdvd/public_html/phpbb/vendor/symfony/event-dispatcher/EventDispatcher.php(61): Symfony\Component\EventDispatcher\EventDispatcher->sortListeners('core.user_setup') #5 /home/arkdvd/public_html/phpbb/vendor/symfony/event-dispatcher/EventDispatcher.php(43): Symfony\Component\EventDispatcher\EventDispatcher->getListeners('core.user_setup') #6 /home/arkdvd/public_html/phpbb/phpbb/event/dispatcher.php(62): Symfony\Component\EventDispatcher\EventDispatcher->dispatch('core.user_setup', Object(phpbb\event\data)) #7 /home/arkdvd/public_html/phpbb/phpbb/event/dispatcher.php(46): phpbb\event\dispatcher->dispatch('core.user_setup', Object(phpbb\event\data)) #8 /home/arkdvd/public_html/phpbb/phpbb/user.php(222): phpbb\event\dispatcher->trigger_event('core.user_setup', Array) #9 /home/arkdvd/public_html/phpbb/ucp.php(42): phpbb\user->setup('ucp') #10 {main} thrown in /home/arkdvd/public_html/phpbb/ext/dmzx/mchat/event/main_listener.php on line 23