elastic search query parsing exception when adding term filter

Inside your filter, you need a bool filter if you have more than one constraints, which is your case, since you have a query filter and a term filter. So the correct way of doing it is like this:

{
  "query": {
    "filtered": {
      "query": {
        "bool": {
          "must": [
            {
              "terms": {
                "status_type": [
                  "1",
                  "2",
                  "7"
                ]
              }
            }
          ]
        }
      },
      "filter": {
        "bool": {               <---- add this
          "must": [             <---- and this
            {
              "query": {
                "query_string": {
                  "fields": [
                    [
                      "name",
                      "message"
                    ]
                  ],
                  "query": "Arnold AND Schwarz"
                }
              }
            },
            {
              "term": {
                "language": "Austrian"
              }
            }
          ]
        }
      }
    }
  },
  "sort": [
    {
      "total": {
        "order": "desc"
      }
    }
  ]
}

However, if I may add something, I would rewrite your query a bit differently and move the query_string over to the query part and the status_type term over to the filter part, it would feel more "natural". Also, in your query part you don't need a bool/must if you have only one constraint.

{
  "query": {
    "filtered": {
      "query": {
        "query_string": {
          "fields": [
            [
              "name",
              "message"
            ]
          ],
          "query": "Arnold AND Schwarz"
        }
      },
      "filter": {
        "bool": {
          "must": [
            {
              "terms": {
                "status_type": [
                  "1",
                  "2",
                  "7"
                ]
              }
            },
            {
              "term": {
                "language": "Austrian"
              }
            }
          ]
        }
      }
    }
  },
  "sort": [
    {
      "total": {
        "order": "desc"
      }
    }
  ]
}