Fatal error: Uncaught Error: Class "Symfony\Component\Console\Helper\Helper" not found in /usr/home/mw2p5ujyzt/www/htdocs/mode2_piwik/vendor/symfony/console/Symfony/Component/Console/Helper/FormatterHelper.php:21 Stack trace: #0 {main} thrown in /usr/home/mw2p5ujyzt/www/htdocs/mode2_piwik/vendor/symfony/console/Symfony/Component/Console/Helper/FormatterHelper.php on line 21