I went today to install the status plugin at the suggestion of this board for an FML like plugin.
Immediately after that I went to view the site - and it wsa the 2014 theme. well that concerned me, but I went back and re-implemented the Cheesed Challenge Child Them.
That gave me the formattig back - but EVERYHING all content. the shopping cart, everything is GONE.
I've been installing wpumdev plugins, so it could have been any of them.
I have backwup backup fiels - not snapshot - I have not installed snapshot yet. The backwpup last 3 days are in the publichtml folder - so I won't be totally out of luck. I will have to be much more careful as I full steam ahead commit myself back to WPMUDEV again. It's been a few years since I was really active. This turned out to be a bit of a surprise.
If you are unable to resolve the site issues, please let me know asap so that I can get my developer on it.