Error message
Warning: DOMDocumentFragment::appendXML(): Entity: line 3: parser error : Unregistered error message in Drupal\Component\Utility\Html::escapeCdataElement() (line 362 of core/lib/Drupal/Component/Utility/Html.php).
Warning: DOMDocumentFragment::appendXML(): in Drupal\Component\Utility\Html::escapeCdataElement() (line 362 of core/lib/Drupal/Component/Utility/Html.php).
Warning: DOMDocumentFragment::appendXML(): ^ in Drupal\Component\Utility\Html::escapeCdataElement() (line 362 of core/lib/Drupal/Component/Utility/Html.php).
Warning: DOMNode::appendChild(): Document Fragment is empty in Drupal\Component\Utility\Html::escapeCdataElement() (line 363 of core/lib/Drupal/Component/Utility/Html.php).
