I'm on Drupal 8 trying to add a simple workflow to a contact form. I have implemented this locally with Maestro Webform integration and it worked out alright.
When implementing this on my server, the Maestro Orchestrator will not run due to this error:
[09-Apr-2019 15:38:42 Europe/Brussels] Uncaught PHP Exception Drupal\Core\Entity\EntityStorageException: "Field langcode is unknown." at xxx/web/core/lib/Drupal/Core/Entity/Sql/SqlContentEntityStorage.php line 783
langcode is a field of my Webform that corresponds to the site language at the time of filling the form.