[phpBB Debug] PHP Warning: in file [ROOT]/vendor/composer/ClassLoader.php on line 571: include(): Failed opening '[ROOT]/vendor/composer/../symfony/config/Definition/Processor.php' for inclusion (include_path='.:/opt/alt/php82/usr/share/pear:/opt/alt/php82/usr/share/php:/usr/share/pear:/usr/share/php')
Fatal error: Uncaught Error: Class "Symfony\Component\Config\Definition\Processor" not found in /home/G/geobergenno/subdomener/forum/vendor/symfony/dependency-injection/Extension/Extension.php:100
Stack trace:
#0 /home/G/geobergenno/subdomener/forum/phpbb/di/extension/core.php(60): Symfony\Component\DependencyInjection\Extension\Extension->processConfiguration()
#1 /home/G/geobergenno/subdomener/forum/vendor/symfony/dependency-injection/Compiler/MergeExtensionConfigurationPass.php(71): phpbb\di\extension\core->load()
#2 /home/G/geobergenno/subdomener/forum/vendor/symfony/http-kernel/DependencyInjection/MergeExtensionConfigurationPass.php(39): Symfony\Component\DependencyInjection\Compiler\MergeExtensionConfigurationPass->process()
#3 /home/G/geobergenno/subdomener/forum/vendor/symfony/dependency-injection/Compiler/Compiler.php(140): Symfony\Component\HttpKernel\DependencyInjection\MergeExtensionConfigurationPass->process()
#4 /home/G/geobergenno/subdomener/forum/vendor/symfony/dependency-injection/ContainerBuilder.php(789): Symfony\Component\DependencyInjection\Compiler\Compiler->compile()
#5 /home/G/geobergenno/subdomener/forum/phpbb/di/container_builder.php(448): Symfony\Component\DependencyInjection\ContainerBuilder->compile()
#6 /home/G/geobergenno/subdomener/forum/phpbb/di/container_builder.php(162): phpbb\di\container_builder->load_extensions()
#7 /home/G/geobergenno/subdomener/forum/common.php(127): phpbb\di\container_builder->get_container()
#8 /home/G/geobergenno/subdomener/forum/viewforum.php(20): include('/home/G/geoberg...')
#9 {main}
thrown in /home/G/geobergenno/subdomener/forum/vendor/symfony/dependency-injection/Extension/Extension.php on line 100