Fatal error: Uncaught Error: Class 'Symfony\Component\Config\Definition\VariableNode' not found in /home/rijschoolmk/xibo.rijschool-mk.be/vendor/symfony/config/Definition/ScalarNode.php:28 Stack trace: #0 {main} thrown in /home/rijschoolmk/xibo.rijschool-mk.be/vendor/symfony/config/Definition/ScalarNode.php on line 28