Call to deprecated constant DATETIME_DATETIME_STORAGE_FORMAT: Deprecated in drupal:8.5.0 and is removed from drupal:9.0.0. Use Drupal\datetime\Plugin\Field\FieldType\DateTimeItemInterface::DATETIME_STORAGE_FORMAT instead.
Results are from dataset #307947 from 2024-10-12T12:47. Report is ran by the Drupal Association regularly.