Access denied for user 'root'@'localhost' (using password: YES)

FILE: /usr/local/www/www.uerb.net/ThinkPHP/Lib/Core/Db.class.php 　LINE: 168

[24-04-26 14:41:04] /usr/local/www/www.uerb.net/ThinkPHP/Lib/Core/Db.class.php (168) DbMysql->connect()
[24-04-26 14:41:04] /usr/local/www/www.uerb.net/ThinkPHP/Lib/Driver/Db/DbMysql.class.php (99) Db->initConnect()
[24-04-26 14:41:04] /usr/local/www/www.uerb.net/ThinkPHP/Lib/Driver/Db/DbMysql.class.php (228) DbMysql->query(SHOW COLUMNS FROM `setting`)
[24-04-26 14:41:04] /usr/local/www/www.uerb.net/ThinkPHP/Lib/Core/Model.class.php (139) DbMysql->getFields(setting)
[24-04-26 14:41:04] /usr/local/www/www.uerb.net/ThinkPHP/Lib/Core/Model.class.php (126) Model->flush()
[24-04-26 14:41:04] /usr/local/www/www.uerb.net/ThinkPHP/Lib/Core/Model.class.php (1242) Model->_checkTableInfo()
[24-04-26 14:41:04] /usr/local/www/www.uerb.net/ThinkPHP/Lib/Core/Model.class.php (100) Model->db(0, )
[24-04-26 14:41:04] /usr/local/www/www.uerb.net/ThinkPHP/Common/common.php (306) Model->__construct(Setting, , )
[24-04-26 14:41:04] /usr/local/www/www.uerb.net/ThinkPHP/Lib/Core/Action.class.php (60) M(Setting)
[24-04-26 14:41:04] /usr/local/www/www.uerb.net/ThinkPHP/Common/common.php (334) Action->__construct()
[24-04-26 14:41:04] /usr/local/www/www.uerb.net/ThinkPHP/Lib/Core/App.class.php (106) A(Index)
[24-04-26 14:41:04] /usr/local/www/www.uerb.net/ThinkPHP/Lib/Core/App.class.php (211) App::exec()
[24-04-26 14:41:04] /usr/local/www/www.uerb.net/ThinkPHP/Lib/Core/Think.class.php (41) App::run()
[24-04-26 14:41:04] /usr/local/www/www.uerb.net/ThinkPHP/Common/runtime.php (249) Think::start()
[24-04-26 14:41:04] /usr/local/www/www.uerb.net/ThinkPHP/ThinkPHP.php (30) require(/usr/local/www/www.uerb.net/ThinkPHP/Common/runtime.php)
[24-04-26 14:41:04] /usr/local/www/www.uerb.net/signup.php (8) require(/usr/local/www/www.uerb.net/ThinkPHP/ThinkPHP.php)