Fatal error: Uncaught Error: Class "Drupal\Core\Entity\Plugin\EntityReferenceSelection\DefaultSelection" not found in /home/qcsvlel/www/core/modules/media/src/Plugin/EntityReferenceSelection/MediaSelection.php:19 Stack trace: #0 {main} thrown in /home/qcsvlel/www/core/modules/media/src/Plugin/EntityReferenceSelection/MediaSelection.php on line 19