Fatal error: Uncaught MongoDB\Driver\Exception\ConnectionTimeoutException: No suitable servers found (`serverSelectionTryOnce` set): [connection timeout calling ismaster on 'mongodb-primary:27017'] in /var/www/html/vendor/mongodb/mongodb/src/functions.php:431 Stack trace: #0 /var/www/html/vendor/mongodb/mongodb/src/functions.php(431): MongoDB\Driver\Manager->selectServer(Object(MongoDB\Driver\ReadPreference)) #1 /var/www/html/vendor/mongodb/mongodb/src/Collection.php(651): MongoDB\select_server(Object(MongoDB\Driver\Manager), Array) #2 /var/www/html/App/Rooter.php(42): MongoDB\Collection->find() #3 /var/www/html/App/Rooter.php(25): App\Rooter->__construct(Object(MongoDB\Database)) #4 /var/www/html/App/App.php(86): App\Rooter::getInstance(Object(MongoDB\Database)) #5 /var/www/html/index.php(29): App->getTemplate() #6 {main} thrown in /var/www/html/vendor/mongodb/mongodb/src/functions.php on line 431