Fatal error: Uncaught MongoDB\Driver\Exception\ConnectionTimeoutException: No suitable servers found (`serverSelectionTryOnce` set): [connection refused calling hello on '37.114.42.221:27017']. Topology type: Single in /var/www/html/vendor/mongodb/mongodb/src/functions.php:598 Stack trace: #0 /var/www/html/vendor/mongodb/mongodb/src/functions.php(598): MongoDB\Driver\Manager->selectServer(Object(MongoDB\Driver\ReadPreference)) #1 /var/www/html/vendor/mongodb/mongodb/src/Collection.php(646): MongoDB\select_server(Object(MongoDB\Driver\Manager), Array) #2 /var/www/html/index.php(6): MongoDB\Collection->find() #3 {main} thrown in /var/www/html/vendor/mongodb/mongodb/src/functions.php on line 598