First error (Can’t reproduce) -
Hearthling disappeared or got stuck in the terrain somewhere and could not be found.
Hearthling starves because he can’t reach a food source and dies. After death, opening the citizen management tab brings up a blank screen. Soon after repeating error messages appear. Both shown in screenshot.
Can upload save if necessary.
Just thought about it… though I feel really bad about it, I think I’ll have a hearthling dig themselves into a hole and starve to try and reproduce