Fatal error: Uncaught Error: Class "Symfony\Component\Filesystem\Filesystem" not found in /home/arkdvd/public_html/phpbb/phpbb/filesystem/filesystem.php:50 Stack trace: #0 /home/arkdvd/public_html/phpbb/includes/functions.php(3273): phpbb\filesystem\filesystem->__construct() #1 /home/arkdvd/public_html/phpbb/includes/functions.php(3032): phpbb_filter_root_path('/home/arkdvd/pu...') #2 /home/arkdvd/public_html/phpbb/vendor/composer/ClassLoader.php(571): msg_handler(2, 'include(): Fail...', '/home/arkdvd/pu...', 571) #3 /home/arkdvd/public_html/phpbb/vendor/composer/ClassLoader.php(571): include() #4 /home/arkdvd/public_html/phpbb/vendor/composer/ClassLoader.php(428): Composer\Autoload\includeFile('/home/arkdvd/pu...') #5 /home/arkdvd/public_html/phpbb/phpbb/filesystem/filesystem.php(50): Composer\Autoload\ClassLoader->loadClass('Symfony\\Compone...') #6 /home/arkdvd/public_html/phpbb/phpbb/cache/driver/file.php(38): phpbb\filesystem\filesystem->__construct() #7 /home/arkdvd/public_html/phpbb/cache/production/container_4335734bbdd20f586549a504dff5f80c.php(1277): phpbb\cache\driver\file->__construct() #8 /home/arkdvd/public_html/phpbb/vendor/symfony/dependency-injection/Container.php(306): phpbb_cache_container->getCache_DriverService() #9 /home/arkdvd/public_html/phpbb/common.php(147): Symfony\Component\DependencyInjection\Container->get('cache.driver') #10 /home/arkdvd/public_html/phpbb/viewtopic.php(20): include('/home/arkdvd/pu...') #11 {main} thrown in /home/arkdvd/public_html/phpbb/phpbb/filesystem/filesystem.php on line 50