Fatal error: Uncaught Error: Class 'Symfony\Component\Console\Helper\Helper' not found in /home/app/htdocs/ninja/vendor/symfony/console/Helper/DebugFormatterHelper.php:21
Stack trace:
#0 {main}
thrown in /home/app/htdocs/ninja/vendor/symfony/console/Helper/DebugFormatterHelper.php on line 21