I noticed squeaksource.com had gotten wedged for maybe an hour or two. I could not connect with VNC, so I did a local fix (on my PC) of the image and restarted it about 10 minutes ago. No data was lost.
I do not have time to look into it further right now, but just for the record there is a copy of the failed image at:
dan.box.squeak.org:/srv/squeaksourcecom/SqueakSource/BACKUPS/ss-image-save-20171229.tgz
Dave