Fatal error: Uncaught Error: Class 'Symfony\Component\VarDumper\Dumper\HtmlDumper' not found in /home/app/htdocs/message_gateway/vendor/laravel/framework/src/Illuminate/Support/Debug/HtmlDumper.php:7 Stack trace: #0 {main} thrown in /home/app/htdocs/message_gateway/vendor/laravel/framework/src/Illuminate/Support/Debug/HtmlDumper.php on line 7