Warning: session_start(): Failed to read session data: user (path: /var/lib/php/session) in /home/wwwroot/125hd/mains/boot/inits.php on line 351

Fatal error: Uncaught MongoDB\Driver\Exception\ConnectionTimeoutException: No suitable servers found (`serverSelectionTryOnce` set): [connection refused calling hello on 'localhost:27017'] in /home/wwwroot/125hd/app/mongodb/functions.php:431 Stack trace: #0 /home/wwwroot/125hd/app/mongodb/functions.php(431): MongoDB\Driver\Manager->selectServer(Object(MongoDB\Driver\ReadPreference)) #1 /home/wwwroot/125hd/app/mongodb/Collection.php(651): MongoDB\select_server(Object(MongoDB\Driver\Manager), Array) #2 /home/wwwroot/125hd/mains/m/db/mongo/mongo.php(523): MongoDB\Collection->find(Array, Array) #3 /home/wwwroot/125hd/mains/m/db/mongo/mongo_session.php(89): m\db\mongo\mongo->s('user_session', 'session_data', Array) #4 [internal function]: m\db\mongo\mongo_session->read('4427807a0cdcc28...') #5 /home/wwwroot/125hd/mains/boot/inits.php(351): session_start() #6 /home/wwwroot/125hd/mains/boot/inits.php(107): inits::start_session() #7 /home/wwwroot/125hd/index.php(6): inits::def() #8 {main} thrown in /home/wwwroot/125hd/app/mongodb/functions.php on line 431