Yes, after killing the last enemy, and I had 1 HP left. I expected to see the loot screen but I got this "Attempted to divide by zero" message instead. I reloaded and did that battle again but no bug appeared, presumably because I had more than 1 HP in the end.
I think that is a rare edge case where the average party hit points is below 2. I think I know where this leads to a crash and will try to fix this asap.
