ErrorWeb: No suitable servers found (`serverSelectionTryOnce` set): [connection refused calling hello on '127.0.0.1:27017']
--- Trace: ---
#0 vendor/mongo2022/mongodb/mongodb/src/functions.php(487): MongoDB\Driver\Manager->selectServer()
#1 vendor/mongo2022/mongodb/mongodb/src/Collection.php(672): MongoDB\select_server()
#2 application/library/base/tool.php(4923): MongoDB\Collection->findOne()
#3 application/library/base/tool.php(5044): ClassRandId::getIdFromRand()
#4 application/ClassSetting.php(354): qqgetIdFromRand()
#5 template/lad01/index.htm(11): ClassSetting::getRootMenuDataFolderId()
#6 index.php(513): require_once('...')
#7 {main} Return Logout