[phpBB Debug] PHP Warning: in file [ROOT]/phpbb/class_loader.php on line 160: require(./ext/phpbbseo/usu/core.php): Failed to open stream: No such file or directory

Fatal error: Uncaught Error: Failed opening required './ext/phpbbseo/usu/core.php' (include_path='.:/opt/plesk/php/8.2/share/pear') in /var/www/vhosts/enceinte.com/httpdocs/forum/phpbb/class_loader.php:160 Stack trace: #0 /var/www/vhosts/enceinte.com/httpdocs/forum/cache/production/container_4335734bbdd20f586549a504dff5f80c.php(4074): phpbb\class_loader->load_class() #1 /var/www/vhosts/enceinte.com/httpdocs/forum/cache/production/container_4335734bbdd20f586549a504dff5f80c.php(4084): phpbb_cache_container->getPhpbbseo_Usu_CoreService() #2 /var/www/vhosts/enceinte.com/httpdocs/forum/cache/production/container_4335734bbdd20f586549a504dff5f80c.php(2387): phpbb_cache_container->getPhpbbseo_Usu_ListenerService() #3 /var/www/vhosts/enceinte.com/httpdocs/forum/vendor/symfony/event-dispatcher/EventDispatcher.php(231): phpbb_cache_container->{closure}() #4 /var/www/vhosts/enceinte.com/httpdocs/forum/vendor/symfony/event-dispatcher/EventDispatcher.php(61): Symfony\Component\EventDispatcher\EventDispatcher->sortListeners() #5 /var/www/vhosts/enceinte.com/httpdocs/forum/vendor/symfony/event-dispatcher/EventDispatcher.php(43): Symfony\Component\EventDispatcher\EventDispatcher->getListeners() #6 /var/www/vhosts/enceinte.com/httpdocs/forum/phpbb/event/dispatcher.php(62): Symfony\Component\EventDispatcher\EventDispatcher->dispatch() #7 /var/www/vhosts/enceinte.com/httpdocs/forum/common.php(181): phpbb\event\dispatcher->dispatch() #8 /var/www/vhosts/enceinte.com/httpdocs/forum/viewtopic.php(20): include('...') #9 {main} thrown in /var/www/vhosts/enceinte.com/httpdocs/forum/phpbb/class_loader.php on line 160