[phpBB Debug] PHP Warning: in file [ROOT]/vendor/composer/ClassLoader.php on line 571: include([ROOT]/vendor/composer/../symfony/dependency-injection/LazyProxy/Instantiator/InstantiatorInterface.php): failed to open stream: No such file or directory
[phpBB Debug] PHP Warning: in file [ROOT]/vendor/composer/ClassLoader.php on line 571: include(): Failed opening '[ROOT]/vendor/composer/../symfony/dependency-injection/LazyProxy/Instantiator/InstantiatorInterface.php' for inclusion (include_path='.:/usr/local/php74/pear')

Fatal error: Uncaught Error: Interface 'Symfony\Component\DependencyInjection\LazyProxy\Instantiator\InstantiatorInterface' not found in /home/customer/www/kampfgruppe144.com/public_html/phpBB3/phpbb/di/proxy_instantiator.php:29 Stack trace: #0 /home/customer/www/kampfgruppe144.com/public_html/phpBB3/phpbb/class_loader.php(160): require() #1 [internal function]: phpbb\class_loader->load_class('\\phpbb\\di\\proxy...') #2 /home/customer/www/kampfgruppe144.com/public_html/phpBB3/phpbb/di/container_builder.php(529): spl_autoload_call('phpbb\\di\\proxy_...') #3 /home/customer/www/kampfgruppe144.com/public_html/phpBB3/phpbb/di/container_builder.php(199): phpbb\di\container_builder->create_container(Array) #4 /home/customer/www/kampfgruppe144.com/public_html/phpBB3/phpbb/di/container_builder.php(444): phpbb\di\container_builder->get_container() #5 /home/customer/www/kampfgruppe144.com/public_html/phpBB3/phpbb/di/container_builder.php(162): phpbb\di\container_builder->load_extensions() #6 /home/customer/www/kampfgruppe144.com/pub in /home/customer/www/kampfgruppe144.com/public_html/phpBB3/phpbb/di/proxy_instantiator.php on line 29