Array index out of bound exception

Elastic Stack Elasticsearch
3

Shouldn't you be using;

curl -X PUT "host:9200/_snapshot/delete_after_read?pretty" -H 'Content-Type: application/json' -d'
{
  "type": "fs",
  "settings": {
    "location": "/opt/elasticsearch-backup/elastique-backup",
  }
}

As per Register a snapshot repository | Elasticsearch Guide [7.14] | Elastic?