Error: Error sending message to Kafka destination
The Kafka connectors are improperly configured, or are detached from the services.
Warning: The information below includes making changes to essential parts of the operating system. Esri recommends performing a backup of the operating system and files, including the registry, before proceeding. Esri cannot guarantee results from incorrect modifications while following these instructions. Exercise caution. Consult a qualified computer systems professional if necessary.
To resolve the error, restart the ArcGIS GeoEvent Server machine. Refer to this document, GeoEvent Server: Service startup, for more information.
If the issue persists, perform an administrative reset of the GeoEvent Server. Refer to the 'Administratively Reset GeoEvent Server' section of the this blog, ArcGIS Blog: HowTo - Administratively Reset GeoEvent Server (10.5.x / 10.6.x), for steps and more information.