[Sunsetdriver]

Ugh...I've just tried to install the product on my live website and the forum doesn't load.
I've got this error message displayed:

Restricted access
Warning: Unknown: failed to open stream: No such file or directory in [path]/global.php(384) : eval()'d code on line 232

Fatal error: Unknown: Failed opening required '/includes/frontend.php' (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/*******/public_html/forum/global.php(384) : eval()'d code on line 232

my config:

Joomla --> www.mydomain.com
vbulletin --> www.mydomain.com/vbulletin

My plugin's settings:
Enter the full path to your joomla directory: www.mydomain.com

Same error with 'www.mydomain.com/'

But if I type '../' a blank page loads.

Any hint? :erm:

How should I type the url of my joomla installation?
Thanks.