Error MainLoop.cpp:1129: Exception at tick 39449: Die Mod Construction Drones hat einen nichtbehebbaren Fehler verursacht.
Bitte informiere den Modautor über diesen Fehler.

Error while running event Construction_Drones::on_ai_command_completed (ID 113)
Construction_Drones/script/construction_drone.lua:1634: attempt to concatenate field 'unit_number' (a nil value)
stack traceback:
Construction_Drones/script/construction_drone.lua:1634: in function 'move_to_order_target'
Construction_Drones/script/construction_drone.lua:1997: in function <Construction_Drones/script/construction_drone.lua:1984>
(...tail calls...)
Construction_Drones/control.lua:37: in function <Construction_Drones/control.lua:35