problems with accessing class_mysql.php

Hi, I am using the advanced poll on my forums www.qnhl.com

Yesterday night, I installed an arcade pluggin, and things were still going well. But this morning, I can't access hte main page due to the following reason:

Warning: mysql_connect(): Can't connect to MySQL server on 'mysql.qnhl.com' (4) in /home/.espanta/aboujouj83/qnhl.com/forum/mybb_102/Upload/polls/include/class_mysql.php on line 32
Connection Error
--------------------------------------------------------------------------------

MySQL Error : Connection Error
Error Number: 0
Date : Fri, June 9, 2006 10:47:38
IP : 18.95.6.98
Browser : Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322)
Referer :
PHP Version : 4.4.2
OS : Linux
Server : Apache/1.3.33 (Unix) mod_throttle/3.1.2 DAV/1.0.3 mod_fastcgi/2.4.2 mod_gzip/1.3.26.1a PHP/4.4.2 mod_ssl/2.8.22 OpenSSL/0.9.7e
Server Name : www.qnhl.com
Script Name : /cgi-system/php.cgi

I am not an expert in php, so it's hard for me to debugg that file. Can anyone tell me what could have gone wrong????

Thanks,
Georges

And you posted this in the Advanced Guestbook section because?

The error message is quite clear in what the error is.

Can't connect to MySQL server on 'mysql.qnhl.com'

Check the server settings in the config file.

I've the same problem.
1minute ago i did a password reset.
But it won't work.