I have been getting error messages when trying to move an already published instructable from public view to private. When I click the "make instructable private" option, it brings me to the first screen. When I then click the "unpublish my instructables and make it private" option, I get brought to the second screen. 

A few notes:
I have several instructables I would like to make private, and I get this error message on all of them, on the same step. 

I started getting this error message on 07/26/12 around 10 pm CST. 

My operating system is Windows 7, I am browsing using Chrome. My Chrome is updated as are my system files (did this last night) and this morning when I restarted the system and tried again, I still got the same error message.