The FAS server can be a bit temperamental. When I try rebuilding any pages or posting new entries, I would get an error about not finding "auto/Digest/MD5/new.al".
Took me a while, but I was able to fix it by installing Digest::MD5 in my extlib directory,as described here.
And now, I will edit my index file to direct people this page, and then go to work on my paper.