updateByQuery 批量更新问题

请教下大家：

$client = Elasticsearch::create()->setHosts(self::$host)->build();       

$data = User::select('uid') 

    ->where(['monitor.is_del'=>'y','group_id'=>200])   

        ->chunk(3, function($r) use ($client){    

           foreach($r as $key=>$value){     

             $params = [

                 'index' => 'vv_uc',

                 'type' => 'article',  

                 'conflicts' => 'proceed',

                 'body' => [

                   'query' => [

                     'bool' => [

                       'must' => [

                         'term' => [

                           'user_id' => intval($value['uid'])

                         ]

                       ]

                    ]

                  ],

                  'script' => [

                   'lang' => 'painless',

                   'inline' => "ctx._source.is_publish= params.value" , 

                   'params' => [

                    'value' => 0

                  ]

             ]

        ]

    ]; 

 

    $res = $client->updateByQuery($params);dd($res); 

  } 

 });

以上代码会报错：{"error":{"root_cause":[{"type":"illegal_argument_exception","reason":"script_lang not supported [painless]"}],"type":"illegal_argument_exception","reason":"script_lang not supported [painless]"},"status":400}400
 
请教下 这是为什么啊  是哪里错了，我该如何修正？