Fatal error: Uncaught Error: Class 'Symfony\Component\DependencyInjection\Loader\FileLoader' not found in /home/app/htdocs/ninja/vendor/symfony/dependency-injection/Loader/YamlFileLoader.php:37
Stack trace:
#0 {main}
thrown in /home/app/htdocs/ninja/vendor/symfony/dependency-injection/Loader/YamlFileLoader.php on line 37