Got this error when playing new game, it happened right after biter attack, can't tell if biters destroyed depot or not.

Error while running event Transport_Drones_Meglinge_Fork::on_entity_died (ID 4)
LuaForce doesn't contain key kill_count_statistics.
stack traceback:
[C]: in function 'index'
...nsport_Drones_Meglinge_Fork/script/transport_drone.lua:743: in function 'handler'
core/lualib/event_handler.lua:47: in function <core/lualib/event_handler.lua:45>

Yea, been happening to me too. happened when a bitter killed one of the trucks and when I accidentally ran one over with a car. Seems that it crashes when a drone is destroyed.