Fatal error: Uncaught Error: Class "Drupal\Core\Field\FormatterBase" not found in /home/fnbrshareacopy/public_html/modules/contrib/markup/src/Plugin/Field/FieldFormatter/MarkupFormatter.php:19 Stack trace: #0 {main} thrown in /home/fnbrshareacopy/public_html/modules/contrib/markup/src/Plugin/Field/FieldFormatter/MarkupFormatter.php on line 19