MySQL Error:

Can not connect to MySQL server Error description: php_network_getaddresses: getaddrinfo failed: Name or service not known
Error number: 2002
Date: 2021-11-27 @ 06:43
Script: http://www.youxueabc.com/item.php?act=list&catid=20

Debug backtrace:

FileLineFunction
core/lib/mysql.php36ms_mysql->_halt()
core/lib/activerecord.php17ms_mysql->connect()
core/init.php67ms_activerecord->__construct()
item.php8require()