出现Discuz! Database Error

用安装帝国备份王，论坛搬家，搬家结束后删除之前安装帝国备份王，老站打开就出现

Discuz! Database Error(1045) notconnect
PHP Debug

No.	File	Line	Code
1	forum.php	56	discuz_application->init()
2	source/class/discuz/discuz_application.php	65	discuz_application->_init_db()
3	source/class/discuz/discuz_application.php	399	discuz_database::init(%s, Array)
4	source/class/discuz/discuz_database.php	23	db_driver_mysql->connect()
5	source/class/db/db_driver_mysql.php	75	db_driver_mysql->_dbconnect(%s, %s, %s, %s, %s, %s)
6	source/class/db/db_driver_mysql.php	88	db_driver_mysql->halt(%s, %d)
7	source/class/db/db_driver_mysql.php	224	break()

如果你的网站的mysql配置信息都正确，一般都是你的服务器或空间mysql挂了

数据库设计即可解决