Fatal error: Uncaught Error: Class "Contao\CoreBundle\Picker\AbstractPickerProvider" not found in /home/rankting/public_html/ALT/ranketing.de (contao)/vendor/contao/core-bundle/src/Picker/PagePickerProvider.php:18 Stack trace: #0 {main} thrown in /home/rankting/public_html/ALT/ranketing.de (contao)/vendor/contao/core-bundle/src/Picker/PagePickerProvider.php on line 18