Try to restart your Apache as the following KB steps:
http://kb.open-e.com/Blank-webGUI_1613.html

If that does not help, then try to install (run) DSS from another new USB stick and see if that makes your system run or not.

Mostly you need to check your RAID controller if it works fine or not, also your disks, and you may need to run file system repair tool after that.