Fatal error: Uncaught Error: Class 'Symfony\Component\Translation\Dumper\FileDumper' not found in /home/app3/public_html/service/vendor/symfony/translation/Dumper/YamlFileDumper.php:22 Stack trace: #0 {main} thrown in /home/app3/public_html/service/vendor/symfony/translation/Dumper/YamlFileDumper.php on line 22