[FireDAC][Phys][SQLite] ERROR: UNIQUE constraint failed - AJUDEM PORFAVOOOR!!

procedure TDM.downloadProds;
const
 _INSERT =
    'INSERT INTO PRODUTO        ' +
    '(                                                ' +
    '    COD,                                    ' +
    '    DESCRICAO,                       ' +
    '    COMPLEMENTO,                ' +
    '    VLRAVISTA,                         ' +
    '    VLRAPRAZO,                      ' +
    '    LOCALIZACAO                   ' +
    ')                                               ' +
    'VALUES                                  ' +
    '(                                               ' +
    '    :COD,                                  ' +
    '    :DESCRICAO,                     ' +
    '    :COMPLEMENTO,              ' +
    '    :VLRAVISTA,                       ' +
    '    :VLRAPRAZO,                    ' +
    '    :LOCALIZACAO                 ' +
    ');                                             ';

var
  dsProd : TFDJsonDataSets;
  iInserts : Integer;

begin
  dsProd := CM.ServerMetodosClient.GetProdutos();
  Assert(TFDJSONDataSetsReader.GetListCount(dsProd) = 1);
  memAux.AppendData(TFDJSONDataSetsReader.GetListValue(dsProd, 0));

  iInserts := memAux.RecordCount;
  qryAuxiliar.Active    := False;
  qryAuxiliar.SQL.Clear;
  qryAuxiliar.SQL.Text  := _INSERT;

  qryAuxiliar.Params.ArraySize := iInserts;

  while not memAux.EOF do
    begin
      qryAuxiliar.ParamByName('COD').AsIntegers[memAux.RecNo -1]       := memAux.FieldByName ('pcodprod').AsInteger;
      qryAuxiliar.ParamByName('DESCRICAO').AsStrings[memAux.RecNo -1]  := memAux.FieldByName ('pdescricao').AsString;
      qryAuxiliar.ParamByName('COMPLEMENTO').AsStrings[memAux.RecNo -1]:= memAux.FieldByName ('compl').AsString;
      qryAuxiliar.ParamByName('VLRAVISTA').AsFloats[memAux.RecNo -1]   := memAux.FieldByName ('pprecovenda').AsFloat;
      qryAuxiliar.ParamByName('VLRAPRAZO').AsFloats[memAux.RecNo -1]   := memAux.FieldByName ('pprecoprazo').AsFloat;
      qryAuxiliar.ParamByName('LOCALIZACAO').AsStrings[memAux.RecNo -1]:= memAux.FieldByName ('plocalizacaoprod').AsString;

      memAux.Next;
    end;
 qryAuxiliar.Execute(iInserts, 0);

end;

CREATE TABLE [PRODUTO](
    [COD] INTEGER PRIMARY KEY AUTOINCREMENT, 
    [DESCRICAO] VARCHAR(50), 
    [COMPLEMENTO] VARCHAR(100), 
    [VLRAVISTA] NUMERIC(15, 3), 
    [VLRAPRAZO] NUMERIC(15, 2), 
    [LOCALIZACAO] VARCHAR(10));