[phpBB Debug] PHP Warning: in file [ROOT]/vendor/composer/ClassLoader.php on line 412: include([ROOT]/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/ContainerBuilder.php): failed to open stream: No such file or directory
[phpBB Debug] PHP Warning: in file [ROOT]/vendor/composer/ClassLoader.php on line 412: include(): Failed opening '[ROOT]/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/ContainerBuilder.php' for inclusion (include_path='.:/usr/local/php5_6/lib/php')

Fatal error: Class 'Symfony\Component\DependencyInjection\ContainerBuilder' not found in /home/content/80/10278080/html/forums/cache/container_0374ec857381230fa83049643ce3cdee.php on line 18