Fatal error: Uncaught Error: Class 'Symfony\Component\VarDumper\Caster\ConstStub' not found in /home/app/htdocs/message_gateway/vendor/symfony/var-dumper/Caster/ClassStub.php:19
Stack trace:
#0 {main}
thrown in /home/app/htdocs/message_gateway/vendor/symfony/var-dumper/Caster/ClassStub.php on line 19