Nothing is displayed in app if communication error API - Qualifio occurs.

Example of test scenario:

Preconditions:

Ibexa Engage configured, but with a wrong client_id or channel_id in config/packages/ibexa_connector_qualifio.yaml

Steps:

1. Log in to the back office.
2. Click Create, select location and Article.
3. Add Campaign custom tag in Rich text field.
4. Click Publish

Actual result:

Campaign custom tag is empty, nothin is displayed.

Expected result:

User should be informed that an error occurred.