zabbix5.0连接ES,PHP报错,报错如下

array_key_exists() expects parameter 2 to be array, string given [jsrpc.php:88 → CScreenHistory->get() → CApiWrapper->__call() → CFrontendApiWrapper->callMethod() → CApiWrapper->callMethod() → CFrontendApiWrapper->callClientMethod() → CLocalApiClient->callMethod() → CHistory->get() → CHistory->getFromElasticsearch() → CElasticsearchHelper::addSort() → array_key_exists() in include/classes/helpers/CElasticsearchHelper.php:351]
 
ES的版本是6.2.4