I am currently facing same issue in my ELK cluster. The cause which made this happen is I accidentally deleted some files(applied glacier life-cycle policy to delete data after some interval) from S3 bucket and then my curator repository stopped working and hence I am not able to list the snapshots and restore indices as well.
I can't afford to start afresh with new bucket as my application is on production environment and I need data now and then.
Please give me a way so that I could be able to access my repository without losing data.
I tried every possible way to access it like trying to delete that specific snapshot and installing curator cli and adding delete_snapshot in action file but none of this helping.
Please help me as soon as possible.