Only one script i like (OJ) and i dont make it.Whay?

#!/usr/bin/perl :is ok
I put all on the right place
Chmod :like jou say
maby is here a problem:

# Path to your Web site's main HTML directory (where the oj subdirectory is;
# no trailing slash). This is also known to some people as their FTP directory.

$mydir = "/home/hopa/public_html";

# Complete path to your cgi-bin directory (no trailing slash). This is similar
# to what you put above, except it's to your site's program or cgi-bin directory.

$progdir = "/home/hopa/public_html/cgi-bin";

# Name of the OpenJournal directory (oj is default; no trailing slash). If you
# want OJ to manage your main homepage, put nothing between the quotes (like "")
# and edit the index file in the ojtemplates subdirectory to look like your
# homepage (keep the OJ HTML comments in the template file, though!).

$ojdir = "/home/hopa/public_html/oj";

# Web path to OpenJournal program (how you access your site's cgi-bin directory
# from your Web browser).

$cgi_url = "http://www.hopa-cupa.com/cgi-bin/oj.cgi";

# Name of your Web server (no trailing slash):

$baseurl = "http://www.hopa-cupa.com";

and all other i didn't change and when i
http://www.hopa-cupa.com/cgi-bin/oj.cgi
I see 500 error
Where im wrong