Fatal error: Uncaught exception 'Elasticsearch\Common\Exceptions\NoNodesAvailableException' with message 'No alive nodes found in your cluster' in /var/www/tutorialspoint/search/vendor/elasticsearch/elasticsearch/src/Elasticsearch/ConnectionPool/StaticNoPingConnectionPool.php:51 Stack trace: #0 /var/www/tutorialspoint/search/vendor/elasticsearch/elasticsearch/src/Elasticsearch/Transport.php(72): Elasticsearch\ConnectionPool\StaticNoPingConnectionPool->nextConnection() #1 /var/www/tutorialspoint/search/vendor/elasticsearch/elasticsearch/src/Elasticsearch/Transport.php(90): Elasticsearch\Transport->getConnection() #2 /var/www/tutorialspoint/search/vendor/elasticsearch/elasticsearch/src/Elasticsearch/Connections/Connection.php(261): Elasticsearch\Transport->performRequest('POST', '/questions/_sea...', Array, '{"query":{"matc...', Array) #3 /var/www/tutorialspoint/search/vendor/react/promise/src/FulfilledPromise.php(28): Elasticsearch\Connections\Connection->Elasticsearch\Connections\{closure}(Array) #4 /var/www/tutorialspoin in /var/www/tutorialspoint/search/vendor/elasticsearch/elasticsearch/src/Elasticsearch/ConnectionPool/StaticNoPingConnectionPool.php on line 51