Missing a family in save

My game also did not wanted to load on my only active family in the save. I tried to go into build mode to do something else until the bug is fixed. Played for some time turned off the game. When I turned it on again to finish the build my ONLY active family is gone. Nowhere to be found. This is 100 hours of progress gone. The save icon still shows their picture but thats all. I did not saved it after it has gone missing but I have no idea what to do and how can I bring it back. Im scared to open the game again. Things like that should not happen. Also they are gone from the main screen and something weird is popping up (wwwwwww)