We had a brief system outage today starting around 2:45pm MST (21:45 GMT). We got our site back up within about 20 minutes, but our DevOps team is still catching up with residual effects of the outage, working on sorting all that out right now.
Meanwhile, you may encounter problems with various aspects of our service including logging in, viewing/editing your products, adding items to a cart, etc. We will followup here to confirm once we're sure things have been fully restored back to normal.
Thanks everyone for your patience, with our apologies for the interruption.