Looks like it's loading for me.
Did you already comment out the exec line in SMF? If you do a search of the forums you'll find many threads about this and how to fix it :)
-Corey
When adding subdomains or add-on domains, you must wait for the update script to run since they have their own virtualhost directive in Apache. So after creating one it can be 12-24 hours before that subdomain has access to intermediate PHP.
Seems you were on it, before I make any changes. What is your site about? I see a torrents folder and the name of it obviously raises some flags.
-Corey
Some other people are getting this, we compiled it in last time we did PHP but it seems it's not seeing it. We're going to be looking into it soon.
-Corey