#2 Internal Server Error

[JoniLee]

First I had Problem with configuration the file index.php

ini_set("include_path",ini_get
("include_path").":http://popcorn-
vn.com/go/modules/pnCGIIRC");
...

But I only got Error "Fail to open file" there's no files or
directories in this path.
So I decided put all the files "config.inc.php" and
phpSniff.class.php in 1 dírectory with index.php
And It's OK
But now when I enter username & chat, this Error
appears: "Internal Server Error"

I don't know if I did something wrong. But please tell me
your ideas about my Problem.
Thanks

[Gavin Roberts]

Logged In: YES
user_id=958804

does your error look something like this?
Fatal error: Cannot redeclare class phpsniff_core
in /home/musician/public_html/modules/pnCGIIRC/pnIncludes/p
hpSniff/phpSniff.core.php on line 24

or does it just say "Internal Server Error"?