This error message indicates that there was an issue with the communication between a client and server using gRPC (a high-performance, open-source framework for building remote procedure call (RPC) services).
The “UNAVAILABLE” status code suggests that the client could not connect to the server or the server is not available at the moment. The “io exception” part of the error message suggests that there was some sort of input/output problem during the communication process.
Possible reasons for this error could be network connectivity issues, server downtime, misconfigured firewalls or proxy settings, or a bug in either the client or server application. It’s recommended to check network connections and configurations first to rule out any obvious issues before further debugging.
