Too many connections

FILE: /home/wwwroot/www_cqoffice_net/ThinkPHP/Lib/Core/Db.class.php 　LINE: 162

[23-10-04 08:19:10] /home/wwwroot/www_cqoffice_net/ThinkPHP/Lib/Core/Db.class.php (162) DbMysql->connect()
[23-10-04 08:19:10] /home/wwwroot/www_cqoffice_net/ThinkPHP/Lib/Driver/Db/DbMysql.class.php (94) Db->initConnect()
[23-10-04 08:19:10] /home/wwwroot/www_cqoffice_net/ThinkPHP/Lib/Driver/Db/DbMysql.class.php (213) DbMysql->query(SHOW COLUMNS FROM `hlb_borough`)
[23-10-04 08:19:10] /home/wwwroot/www_cqoffice_net/ThinkPHP/Lib/Core/Model.class.php (135) DbMysql->getFields(hlb_borough)
[23-10-04 08:19:10] /home/wwwroot/www_cqoffice_net/ThinkPHP/Lib/Core/Model.class.php (123) Model->flush()
[23-10-04 08:19:10] /home/wwwroot/www_cqoffice_net/ThinkPHP/Lib/Core/Model.class.php (1174) Model->_checkTableInfo()
[23-10-04 08:19:10] /home/wwwroot/www_cqoffice_net/ThinkPHP/Lib/Core/Model.class.php (98) Model->db(0, )
[23-10-04 08:19:10] /home/wwwroot/www_cqoffice_net/ThinkPHP/Common/common.php (270) Model->__construct()
[23-10-04 08:19:10] /home/wwwroot/www_cqoffice_net/Home/Lib/Action/BoroughAction.class.php (77) D(borough)
[23-10-04 08:19:10] () BoroughAction->rent()
[23-10-04 08:19:10] /home/wwwroot/www_cqoffice_net/ThinkPHP/Lib/Core/App.class.php (171) ReflectionMethod->invoke()
[23-10-04 08:19:10] /home/wwwroot/www_cqoffice_net/ThinkPHP/Lib/Core/App.class.php (207) App::exec()
[23-10-04 08:19:10] /home/wwwroot/www_cqoffice_net/ThinkPHP/Lib/Core/Think.class.php (39) App::run()
[23-10-04 08:19:10] /home/wwwroot/www_cqoffice_net/ThinkPHP/Common/runtime.php (242) Think::start()
[23-10-04 08:19:10] /home/wwwroot/www_cqoffice_net/ThinkPHP/ThinkPHP.php (30) require(/home/wwwroot/www_cqoffice_net/ThinkPHP/Common/runtime.php)
[23-10-04 08:19:10] /home/wwwroot/www_cqoffice_net/public_html/index.php (14) require(/home/wwwroot/www_cqoffice_net/ThinkPHP/ThinkPHP.php)