### Elasticsearch Version

8.5.0

### Installed Plugins

_No response_

### Java Version

_bundled_

### OS Version

Linux 9b4c50a443c1 5.15.0-52-generic #58-Ubuntu SMP Thu Oct 13 08:03:55 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

### Problem Description

In 8.5, _nodes/stats returns a failure message if the node has closed indices. In previous versions, it works.
Please see steps to reproduce.

### Steps to Reproduce

```
$ curl -XPUT http://localhost:9200/test_index
$ curl http://localhost:9200/_nodes/stats  # <- it works
$ curl -XPOST http://localhost:9200/test_index/_close
$ curl http://localhost:9200/_nodes/stats
{
  "_nodes": {
    "total": 1,
    "successful": 0,
    "failed": 1,
    "failures": [
      {
        "type": "failed_node_exception",
        "reason": "Failed node [...]",
        "node_id": "...",
        "caused_by": {
          "type": "null_pointer_exception",
          "reason": "Cannot invoke \"org.elasticsearch.index.mapper.MapperService.mappingLookup()\" because the return value of \"org.elasticsearch.index.IndexService.mapperService()\" is null"
        }
      }
    ]
  },
  "cluster_name": "...",
  "nodes": {}
}
```

### Logs (if relevant)

_No response_
server/src/main/java/org/elasticsearch/index/IndexService.java
logger.warn("failed to sync translog", e);
                }
            }
        }
    }
    private void maybeRefreshEngine(boolean force) {
        if (indexSettings.getRefreshInterval().millis() > 0 || force) {
            for (IndexShard shard : this.shards.values()) {
                try {
                    shard.scheduledRefresh();
                } catch (IndexShardClosedException | AlreadyClosedException ex) {
                    
                }
            }
        }
    }
    private void maybeTrimTranslog() {
        for (IndexShard shard : this.shards.values()) {
            switch (shard.state()) {
                case CREATED:
                case RECOVERING:
                case CLOSED:
                    continue;
                case POST_RECOVERY:
                case STARTED:
                    try {
                        shard.trimTranslog();
                    } catch (IndexShardClosedException | AlreadyClosedException ex) {
                        
                    }