Hi there @sasankasahu - it looks as though this is a problem with the k8s cluster and the vpc.
Pods are getting IP addresses assigned that are out of valid private address range.
- Reference: (Kubernetes | Weaviate - Vector Database)
- Also see (Memberlist failed to get final advertise address: No private IP address found, and explicit IP not provided - #2 by hebkon)
Since you mentioned it was working before, perhaps something caused the pods to restart, and possibly get assigned new IP addresses?