<br />
<b>Fatal error</b>:  Uncaught Elastic\Elasticsearch\Exception\ServerResponseException: 503 Service Unavailable: {&quot;error&quot;:{&quot;root_cause&quot;:[{&quot;type&quot;:&quot;no_shard_available_action_exception&quot;,&quot;reason&quot;:null}],&quot;type&quot;:&quot;search_phase_execution_exception&quot;,&quot;reason&quot;:&quot;all shards failed&quot;,&quot;phase&quot;:&quot;query&quot;,&quot;grouped&quot;:true,&quot;failed_shards&quot;:[{&quot;shard&quot;:0,&quot;index&quot;:&quot;newsfavorite&quot;,&quot;node&quot;:null,&quot;reason&quot;:{&quot;type&quot;:&quot;no_shard_available_action_exception&quot;,&quot;reason&quot;:null}}]},&quot;status&quot;:503} in /opt/kakalopo/adm/vendor/elasticsearch/elasticsearch/src/Response/Elasticsearch.php:74
Stack trace:
#0 /opt/kakalopo/adm/vendor/elasticsearch/elasticsearch/src/Client.php(172): Elastic\Elasticsearch\Response\Elasticsearch-&gt;setResponse()
#1 /opt/kakalopo/adm/vendor/elasticsearch/elasticsearch/src/Traits/ClientEndpointsTrait.php(1614): Elastic\Elasticsearch\Client-&gt;sendRequest()
#2 /opt/kakalopo/web/news/class/newsElastic.php(491): Elastic\Elasticsearch\Client-&gt;search()
#3 /opt/kakalopo/web/news/class/favorite.php(159): newsElastic-&gt;existFavorite()
#4 /opt/kakalopo/web/news/controllers/pc/singleController2.php(109): FavoriteAPI-&gt;checkNews()
#5 /opt/kakalopo/web/news/public/single.php(23): include('...')
#6 {main}
  thrown in <b>/opt/kakalopo/adm/vendor/elasticsearch/elasticsearch/src/Response/Elasticsearch.php</b> on line <b>74</b><br />