An OpenShift update on 27 Jan 2015 broke something with the website. This should be fixed now.
I just noticed that the BOLTS website was broken. Looking at the logs it seemed like a AppArmor adjustment lead to relative imports in the python code not working anymore. I guess that this is a security fix, so I prefer that to break instead of being vulnerable. Changing the relative imports to import relative to the package seems to fix the problem.