An exception occured while bootstrapping the application.

SQLSTATE[HY000] [2000] mysqlnd cannot connect to MySQL 4.1+ using the old insecure authentication. Please use an administration tool to reset your password with the command SET PASSWORD = PASSWORD('your_existing_password'). This will store a new, and more secure, hash value in mysql.user. If this user is used in other scripts executed by PHP 5.2 or earlier you might need to remove the old-passwords flag from your my.cnf file
Stack Trace:
#0 /home/hrbginfo/library/Zend/Db/Adapter/Pdo/Mysql.php(109): Zend_Db_Adapter_Pdo_Abstract->_connect()
#1 /home/hrbginfo/library/Zend/Db/Adapter/Abstract.php(459): Zend_Db_Adapter_Pdo_Mysql->_connect()
#2 /home/hrbginfo/library/Zend/Db/Adapter/Pdo/Abstract.php(238): Zend_Db_Adapter_Abstract->query('SET NAMES 'utf8...', Array)
#3 /home/hrbginfo/application/bootstrap.php(28): Zend_Db_Adapter_Pdo_Abstract->query('SET NAMES 'utf8...')
#4 /home/hrbginfo/public_html/index.php(38): require('/home/hrbginfo/...')
#5 {main}