Warning: mysqli_connect() [function.mysqli-connect]: (28000/1045): Access denied for user 'address'@'mail.adres.bg' (using password: YES) in /var/www/address-ru/lib/Mysql.Sql.class.php on line 51

Oops! Error while trying to connect to the database. The SQL server said: Access denied for user 'address'@'mail.adres.bg' (using password: YES).
The error occurred on line 52 of /var/www/address-ru/lib/Mysql.Sql.class.php

#0  ApplicationError->report() called at [/var/www/address-ru/public/_inc.php:121]
#1  exceptionHandler(SqlConnectionError Object ([dbh] => Mysql Object ([result] => ,[] => ,[] => ,[] => ,[] => ,[] => ,[] => object,[] => ,[] => ,[] => ,[] => ,[] => Array (),[status] => 0),[] => Error while trying to connect to the database. 
The SQL server said: Access denied for user 'address'@'mail.adres.bg' (using password: YES).,[] => ,[] => 0,[] => /var/www/address-ru/lib/Mysql.Sql.class.php,[] => 52,[] => Array ([0] => Array ([file] => /var/www/address-ru/lib/Sql.class.php,[line] => 174,[function] => connect,[class] => Mysql,[type] => ->,[args] => Array ([0] => 213.91.212.68,[1] => address,[2] => dbbg_address,[3] => address_ru)),[1] => Array ([file] => /var/www/address-ru/lib/Mysql.Sql.class.php,[line] => 29,[function] => __construct,[class] => Sql,[type] => ->,[args] => Array ([0] => 213.91.212.68,[1] => address,[2] => dbbg_address,[3] => address_ru)),[2] => Array ([file] => /var/www/address-ru/lib/Sql.class.php,[line] => 110,[function] => __construct,[class] => Mysql,[type] => ->,[args] => Array ([0] => 213.91.212.68,[1] => address,[2] => dbbg_address,[3] => address_ru)),[3] => Array ([file] => /var/www/address-ru/public/_inc.php,[line] => 167,[function] => create,[class] => SqlFactory,[type] => ::,[args] => Array ([0] => mysql,[1] => 213.91.212.68,[2] => address,[3] => dbbg_address,[4] => address_ru)),[4] => Array ([file] => /var/www/address-ru/public/dispatch.php,[line] => 34,[args] => Array ([0] => /var/www/address-ru/public/_inc.php),[function] => require_once))))