Fatal error: Uncaught MongoDB\Driver\Exception\ConnectionTimeoutException: No suitable servers found (`serverSelectionTryOnce` set): [connection timeout calling hello on '10.0.0.2:27017'] in /var/www/html/nove/lib/vendor/mongodb/mongodb/src/functions.php:520 Stack trace: #0 /var/www/html/nove/lib/vendor/mongodb/mongodb/src/functions.php(520): MongoDB\Driver\Manager->selectServer(Object(MongoDB\Driver\ReadPreference)) #1 /var/www/html/nove/lib/vendor/mongodb/mongodb/src/Collection.php(687): MongoDB\select_server(Object(MongoDB\Driver\Manager), Array) #2 /var/www/html/nove/lib/vendor/alcaeus/mongo-php-adapter/lib/Mongo/MongoCollection.php(563): MongoDB\Collection->findOne(Object(MongoDB\Model\BSONDocument), Array) #3 /var/www/html/nove/controllers/search.php(73): MongoCollection->findOne(Array) #4 /var/www/html/nove/index.php(94): include('/var/www/html/n...') #5 {main} Next MongoConnectionException: No suitable servers found (`serverSelectionTryOnce` set): [connection timeout calling hello on '10.0.0.2:27017'] in /var/www in /var/www/html/nove/lib/vendor/alcaeus/mongo-php-adapter/lib/Alcaeus/MongoDbAdapter/ExceptionConverter.php on line 85