Fatal error: Uncaught Error: Class 'Symfony\Component\VarDumper\Cloner\AbstractCloner' not found in /home/app/htdocs/ninja/vendor/symfony/var-dumper/Cloner/VarCloner.php:17
Stack trace:
#0 {main}
thrown in /home/app/htdocs/ninja/vendor/symfony/var-dumper/Cloner/VarCloner.php on line 17