And I HATE SPAMMERS.
So, I decided to clean it and put this warning here.
Steps to remove this warning:
/** REMOVE THESE LINES TO FIX THIS SITE */ header('location:index.html'); exit(); /* END */
You should clean your database records too, seems they are full of shit.
Also I recommend you to update your plugins and wordpress versions.
BTW. Wordpress sucks!!
Next time you should put an email contact and I will not have to do this.