1-8 - Failure to unregister (unsubscribe) address during destruction

Possible Reasons

1. The error during consumer unregistration or unsubscription may be caused by a failure of the registry center.
2. The corresponding provider may not have been successfully published.

Troubleshooting and Resolution Steps

1. Check whether the registry center is operating normally.
2. Check whether the provider has been successfully published.
3. Check the relevant parameters of the provider for the registry center, such as registry, config-center, and metadata-report, to ensure they are configured correctly.

See also Configuration Item Reference Manual