Sorry, I'm on a hosting and dont have access to apache log. The only error log I have acces to is the error log in cpanel, and that only reported one file;
[Mon Jan 5 03:36:32 2009] [error] [client 97.226.2xx.xx] File does not exist: /home/USER/public_html/OpenGoo/public/assets/themes/default/stylesheets/custom.css
I took a copy of website.css, and renamed it to custom.css, so that error is now gone..