I'm facing error in Cassandra backup helm file. I have referred incubator/Cassandra file. I'm installing this application on aws eks cluster and for backup I'm using s3 bucket.

the error :

Backup started!
Getting clients
Getting pods
Testing existence of data dir
/var/lib/cassandra/data does not exist. error in Stream: container cassandra is not valid for pod <pod-name>

What might be the error? kindly help me to solve it.