My site gone down m error message logs

This is the error log I'm getting
'yournota_cms'@'localhost' (using password: YES) in /home/yournota/public_html/Connections/PowerCMSConnection.php on line 9
[14-Apr-2012 16:34:02] PHP Fatal error: Access denied for user 'yournota_cms'@'localhost' (using password: YES) in /home/yournota/public_html/Connections/PowerCMSConnection.php on line 9

This is the file refereed to

<?php
# FileName="Connection_php_mysql.htm"
# Type="MYSQL"
# HTTP="true"
$hostname_PowerCMSConnection = "localhost";
$database_PowerCMSConnection = "yournota_cms";
$username_PowerCMSConnection = "yournota_cms";
$password_PowerCMSConnection = "yournota_RR9QYG5";//yournota_RR9QYG5
$PowerCMSConnection = mysql_pconnect($hostname_PowerCMSConnection, $username_PowerCMSConnection, $password_PowerCMSConnection) or trigger_error(mysql_error(),E_USER_ERROR);
?>

This implies that the database connection information is wrong. You can update that file manually. Get the correct database connection information from your hosting control panel.

Thanks Ray I'll do that

I ended up re-uploading the entire site. Whatever was missing or wrong was rectified and it now works fine. Thanks for the help.