Error

Error: Internal server error: {"response":{"data":{"nodeQuery":null},"errors":[{"debugMessage":"Required single field plugin returned no results.","message":"Internal server error","extensions":{"category":"internal"},"locations":[{"line":15,"column":9}],"path":["nodeQuery","results",3,"newsSource"]}],"status":200,"headers":{}},"request":{"query":"query MyQuery($topic: String) {\n nodeQuery(\n filter: {field_type_of_content_target_id: [\"3316\", \"14945\", \"17898\"], type: \"allsides_news_item\", field_topic_target_id: $topic}\n ) {\n results {\n ... on NodeAllsidesNewsItem {\n id\n title\n path\n topic {\n id\n name\n path\n }\n newsSource {\n title\n path\n newsBias {\n title\n globalBias {\n name\n }\n biasImage {\n url\n alt\n }\n }\n }\n imageOfNews {\n url\n }\n imageCaption\n }\n }\n }\n}","variables":{"topic":"Donald Trump"}}}

        {
  "response": {
    "data": {
      "nodeQuery": null
    },
    "errors": [
      {
        "debugMessage": "Required single field plugin returned no results.",
        "message": "Internal server error",
        "extensions": {
          "category": "internal"
        },
        "locations": [
          {
            "line": 15,
            "column": 9
          }
        ],
        "path": [
          "nodeQuery",
          "results",
          3,
          "newsSource"
        ]
      }
    ],
    "status": 200,
    "headers": {}
  },
  "request": {
    "query": "query MyQuery($topic: String) {\n  nodeQuery(\n    filter: {field_type_of_content_target_id: [\"3316\", \"14945\", \"17898\"], type: \"allsides_news_item\", field_topic_target_id: $topic}\n  ) {\n    results {\n      ... on NodeAllsidesNewsItem {\n        id\n        title\n        path\n        topic {\n          id\n          name\n          path\n        }\n        newsSource {\n          title\n          path\n          newsBias {\n            title\n            globalBias {\n              name\n            }\n            biasImage {\n              url\n              alt\n            }\n          }\n        }\n        imageOfNews {\n          url\n        }\n        imageCaption\n      }\n    }\n  }\n}",
    "variables": {
      "topic": "Donald Trump"
    }
  }
}