From my support ticket:
"Posted Sunday, 2/9/2014 8:59 AM
Hello,
Thank you for contacting Auctiva Support and sorry for inconvenience caused.
We were aware of this issue and had reported to our engineering team. It looks like they have since resolved this issue. Auctiva site is functional again. I have verified this at my end. Please verify this at your end.
Please let us know if you have any further questions.
Sincerely,"