Fatal error: Uncaught Error: Class 'Symfony\Component\Translation\Dumper\FileDumper' not found in /home/app/htdocs/ninja/vendor/symfony/translation/Dumper/CsvFileDumper.php:21
Stack trace:
#0 {main}
thrown in /home/app/htdocs/ninja/vendor/symfony/translation/Dumper/CsvFileDumper.php on line 21