[otrs] demo.otrs.org down?

Hi, I was hoping to try out demo.otrs.org, but it's been down since at least yesterday. It's failing with: Software error: Magic number checking on storable string failed at blib/lib/Storable.pm (autosplit into blib/lib/auto/Storable/thaw.al) line 415, at /opt/otrs//Kernel/System/Cache/FileStorable.pm line 128 For help, please send mail to the webmaster (info@otrs.org), giving this error message and the time and date of the error. Does anyone know if the demo site is based on v3-beta or v2.x? Regards Henry