String conversion error in JSONArray - Android Volley Method

My application receives a JSONString via web service from a C # API, as listed below:

[{
"LimiteCredito": 123.00,
"PessoasFuncionarioId": 16,
"Id": 12,
"Nome": "Cliente PF A",
"DataEdicao": "\/Date(1485019536610-0200)\/",
"UsuarioAlteracaoId": "cdf23118-5991-4eb5-9ec4-ea1fc6e6ce3a",
"RazaoSocial": "Cliente PF A",
"Tipo": 1,
"Cpf": "80158536991   ",
"Sexo": "M",
"TelefonePrincipal": "(41) 9999-9999",
"Email": "[email protected]",
"EstadoRgId": 2,
"Apelido": "Cliente PF A",
"Erp10Id": 1,
"GrupoCrCpId": 1
}]

When trying to convert this JSONString to JSONArray , I get a org.json.JSONException with the following error:

org.json.JSONException: Value [{"LimiteCredito": 123.00,
"PessoasFuncionarioId": 16,
"Id": 12,
"Nome": "Cliente PF A",
"DataEdicao": "\/Date(1485019536610-0200)\/",
"UsuarioAlteracaoId": "cdf23118-5991-4eb5-9ec4-ea1fc6e6ce3a",
"RazaoSocial": "Cliente PF A",
"Tipo": 1,
"Cpf": "80158536991   ",
"Sexo": "M",
"TelefonePrincipal": "(41) 9999-9999",
"Email": "[email protected]",
"EstadoRgId": 2,
"Apelido": "Cliente PF A",
"Erp10Id": 1,
"GrupoCrCpId": 1
}] of type java.lang.String cannot be converted to JSONArray

Follow my code below using the Volley library. - Code that calls Activity:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_teste_requisicao);

    url = "minhaURL";
    queue = Volley.newRequestQueue(TesteRequisicaoActivity.this);


    callByJsonArrayRequest(null);
}

// CALLS VOLLEY
public void callByJsonArrayRequest(View view) {
    Map<String, String> params = new HashMap<String, String>();
    params.put("UserName", "demo");
    params.put("Password", "12341234");

    RegrasClienteMixForteHelper request = new RegrasClienteMixForteHelper(Request.Method.POST, url, params, new Response.Listener<JSONArray>() {
        @Override
        public void onResponse(JSONArray response) {
            Log.i("Script", "SUCCESS: " + response);
        }
    },
            new Response.ErrorListener() {
                @Override
                public void onErrorResponse(VolleyError error) {
                    Toast.makeText(TesteRequisicaoActivity.this, "Error: " + error.getMessage(), Toast.LENGTH_LONG).show();
                }
            });

    request.setTag("tag");
    queue.add(request);
}

@Override
public void onStop() {
    super.onStop();

    queue.cancelAll("tag");
}

• Code that calls the method of receiving JSONArray data:

  public class RegrasClienteMixForteHelper extends Request<JSONArray> {
  private Response.Listener<JSONArray> response;
  private Map<String, String> params;
  
  public RegrasClienteMixForteHelper(int method, String url, Map<String, String> params, Response.Listener<JSONArray> response, Response.ErrorListener listener) {
              super(method, url, listener);
              this.params = params;
              this.response = response;}
  
  
  
  
  public Map<String, String> getParams() throws AuthFailureError {
      return params;
  }
  
  public Map<String, String> getHeaders() throws AuthFailureError {
      HashMap<String, String> header = new HashMap<String, String>();
      header.put("apiKey", "application/json");
  
      return (header);
  }
  
  @Override
  protected Response<JSONArray> parseNetworkResponse(NetworkResponse response) {
      try {
  
          String jsonString = new String(response.data, HttpHeaderParser.parseCharset(response.headers));
          JSONArray jsonArray = new JSONArray(jsonString);// ERROR -> this is not a JSONArray, same for JSONObject
          return Response.success(jsonArray, HttpHeaderParser.parseCacheHeaders(response));
      } catch (UnsupportedEncodingException e) {
          e.printStackTrace();
      }
      return null;
  }
  
  
  @Override
  protected void deliverResponse(JSONArray response) {
      this.response.onResponse(response);
  }
  

What's wrong with the code so I can not convert to JSONArray?