The client for handling certificate diagnostic across Dashboards in the Status Service received an invalid response.
The local Dashboard received an invalid response while trying to contact a downstream dashboard while trying to verify your signature. You will not be able to communicate with this downstream node via the Dashboard, and will likely have other signature-related problems with it.
The hub admin and downstream node admin must work together to examine their keystores and discover why the local dashboard's signature is not recognized.
Retired in Shrine 2.0