Bills query 'Unexpected error'?

GraphQL API
1

Hello! I had a query to grab Bill data that was working fine for months but suddenly stopped working the past two days

Here’s the query:

{
  bills {
    request_id
    complexity
    data(last: 10) {
      edges {
        node {
          id
          legacy_id
          customer_name
          created_at
          amount
          status
        }
      }
    }
  }
}

And the result I get is:

{
    "errors": [
        {
            "message": "Unexpected Error",
            "operation": "bills",
            "field": "data",
            "request_id": "REDACTED",
            "code": 22
        }
    ],
    "data": {
        "bills": {
            "request_id": "REDACTED",
            "complexity": 11,
            "data": null
        }
    },
    "extensions": {
        "throttling": {
            "estimated_complexity": 11,
            "cost": 1,
            "cost_detail": {
                "bills": {
                    "items_count": 0,
                    "cost": 1,
                    "total_cost": 1,
                    "fields": {}
                }
            },
            "user_quota": {
                "credits_remaining": 1643,
                "max_available": 2002,
                "increment_rate": 30
            }
        }
    }
}

Can anyone tell me what I might be doing wrong or whether there was an update of some sort?

Here’s the original thread where I found out about ‘Bills’, couldn’t seem to find it in the docs but might have missed it!