Fatal error: Uncaught Error: Class 'Symfony\Component\HttpKernel\DependencyInjection\ConfigurableExtension' not found in /home/eberhardschwarze/public_html/vendor/menatwork/contao-multicolumnwizard-bundle/src/DependencyInjection/MultiColumnWizardExtension.php:35 Stack trace: #0 {main} thrown in /home/eberhardschwarze/public_html/vendor/menatwork/contao-multicolumnwizard-bundle/src/DependencyInjection/MultiColumnWizardExtension.php on line 35