Fatal error: Uncaught Elasticsearch\Common\Exceptions\ServerErrorResponseException: <html>
<head><title>502 Bad Gateway</title></head>
<body>
<center><h1>502 Bad Gateway</h1></center>
<hr><center>openresty</center>
</body>
</html>
in /www/xweb/vendor/elasticsearch/elasticsearch/src/Elasticsearch/Connections/Connection.php:674
Stack trace:
#0 /www/xweb/vendor/elasticsearch/elasticsearch/src/Elasticsearch/Connections/Connection.php(331): Elasticsearch\Connections\Connection->process5xxError()
#1 /www/xweb/vendor/react/promise/src/FulfilledPromise.php(28): Elasticsearch\Connections\Connection->Elasticsearch\Connections\{closure}()
#2 /www/xweb/vendor/ezimuel/ringphp/src/Future/CompletedFutureValue.php(65): React\Promise\FulfilledPromise->then()
#3 /www/xweb/vendor/ezimuel/ringphp/src/Core.php(341): GuzzleHttp\Ring\Future\CompletedFutureValue->then()
#4 /www/xweb/vendor/elasticsearch/elasticsearch/src/Elasticsearch/Connections/Connection.php(340): GuzzleHttp\Ring\Core::proxy()
#5 /www/xweb/vendor/elasticsearch/elastic in /www/xweb/vendor/elasticsearch/elasticsearch/src/Elasticsearch/Connections/Connection.php on line 674