Connection refused

FILE: /www/wwwroot/drtyf.com/_core/Lib/Core/Db.class.php 　LINE: 168

[24-06-07 16:08:06] /www/wwwroot/drtyf.com/_core/Lib/Core/Db.class.php (168) DbMysql->connect()
[24-06-07 16:08:06] /www/wwwroot/drtyf.com/_core/Lib/Driver/Db/DbMysql.class.php (96) Db->initConnect()
[24-06-07 16:08:06] /www/wwwroot/drtyf.com/_core/Lib/Core/Db.class.php (739) DbMysql->query(SELECT * FROM `ins_hots` ORDER BY id desc )
[24-06-07 16:08:06] /www/wwwroot/drtyf.com/_core/Lib/Core/Model.class.php (534) Db->select(Array)
[24-06-07 16:08:06] /www/wwwroot/drtyf.com/app/Lib/Model/baseModel.class.php (93) Model->select(Array)
[24-06-07 16:08:06] /www/wwwroot/drtyf.com/app/Lib/Action/frontendAction.class.php (51) baseModel->select()
[24-06-07 16:08:06] /www/wwwroot/drtyf.com/data/runtime/~cli_runtime.php (1) frontendAction->_initialize()
[24-06-07 16:08:06] /www/wwwroot/drtyf.com/data/runtime/~cli_runtime.php (1) Action->__construct()
[24-06-07 16:08:06] /www/wwwroot/drtyf.com/data/runtime/~cli_runtime.php (1) A(home/list)
[24-06-07 16:08:06] /www/wwwroot/drtyf.com/data/runtime/~cli_runtime.php (1) App::exec()
[24-06-07 16:08:06] /www/wwwroot/drtyf.com/data/runtime/~cli_runtime.php (1) App::run()
[24-06-07 16:08:06] /www/wwwroot/drtyf.com/data/runtime/~cli_runtime.php (1) Think::start()
[24-06-07 16:08:06] /www/wwwroot/drtyf.com/_core/setup.php (25) require(/www/wwwroot/drtyf.com/data/runtime/~cli_runtime.php)
[24-06-07 16:08:06] /www/wwwroot/drtyf.com/index.php (79) require(/www/wwwroot/drtyf.com/_core/setup.php)