bbPress.org

you seem to have malware on your site

http://sitecheck2.sucuri.net/results/digiscrapper.co.za/

it means that someone has gained access to your site, and put some code into it.

You really need to go through all of these to fully clean up the site and make sure any “backdoors” have been closed:
https://wordpress.org/support/topic/268083#post-1065779

How To Completely Clean Your Hacked WordPress Installation

http://ottopress.com/2009/hacked-wordpress-backdoors/
Additional Resources:
http://sitecheck.sucuri.net/scanner/
http://www.unmaskparasites.com/
http://blog.sucuri.net/2012/03/wordpress-understanding-its-true-vulnerability.html

or you can pay securi to fix it for you – see the link above !

I have no connection with Securi, they are a commercial company, and you will need to use your judgement.

I also have no connection with BBpress other than being a volunteer moderator of this site.

BBpress works well with many themes and plugins, but compatibility with all is by no means guaranteed.