FANWE Database Error

The database has encountered a problem.

Error messages:

[Type] dbnot_connect [1045] Access denied for user 'root'@'localhost' (using password: YES)

Program messages:

[Line: 0008]index.php(FanweService->initialize) [Line: 0172]core/service/fanwe.service.php(FanweService->buildDb) [Line: 0335]core/service/fanwe.service.php(FDbMySql->connect) [Line: 0052]core/class/mysql.class.php(FDbMySql->_dbConnect) [Line: 0062]core/class/mysql.class.php(FDbMySql->halt) [Line: 0233]core/class/mysql.class.php(FanweError->dbError) [Line: 0121]core/class/error.class.php(FanweError->debugBacktrace)