Fatal error: Uncaught exception 'Elasticsearch\Common\Exceptions\BadRequest400Exception' with message '{"error":{"root_cause":[{"type":"parsing_exception","reason":"[terms] unknown token [VALUE_NULL] after [classid]","line":1,"col":112}],"type":"x_content_parse_exception","reason":"[1:112] [bool] failed to parse field [must]","caused_by":{"type":"parsing_exception","reason":"[terms] unknown token [VALUE_NULL] after [classid]","line":1,"col":112}},"status":400}' in /www/wwwroot/yitu.cn/q/es/vendor/elasticsearch/elasticsearch/src/Elasticsearch/Connections/Connection.php:630 Stack trace: #0 /www/wwwroot/yitu.cn/q/es/vendor/elasticsearch/elasticsearch/src/Elasticsearch/Connections/Connection.php(293): Elasticsearch\Connections\Connection->process4xxError(Array, Array, Array) #1 /www/wwwroot/yitu.cn/q/es/vendor/react/promise/src/FulfilledPromise.php(28): Elasticsearch\Connections\Connection->Elasticsearch\Connections\{closure}(Array) #2 /www/wwwroot/yitu.cn/q/es/vendor/guzzlehttp/ringphp/src/Future/CompletedFutureValue.php(55) in /www/wwwroot/yitu.cn/q/es/vendor/elasticsearch/elasticsearch/src/Elasticsearch/Connections/Connection.php on line 630