"An exception of type 'System.InvalidOperationException' occurred and was caught."
This happened to me about a month ago, but only affected one tree (with the one I have for my wife's family and another for an in-law being unaffected). Sadly, the tree was my own family history and the one on which I had done most work. I have written notes for most of my research and now wish I was as meticulous about electronic back ups as I am about written evidence. The only back up that finally worked (after reimporting it) was from 2010 and I have spent an inordinate amount of time re-entering the information from the written notes that was lost in the intervening years.
Moral of the story is that I will be backing up my file more often and especially after a long session of working on the tree. I have learned that the auto-backup isn't sufficient!
I too contacted MacKiev. They were helpful to a point and offered to look at my tree file to see if it could be salvaged, but I declined as I wasn't comfortable sending this information to anyone I did not know.
To date there have been no further issues. Fingers crossed!
Best wishes
Rockford
