Error while running event Construction_Drones::on_tick (ID 0)
Construction_Drones/script/construction_drone.lua:1391: bad argument #1 to 'pairs' (table expected, got nil)
stack traceback:
[C]: in function 'pairs'
Construction_Drones/script/construction_drone.lua:1391: in function 'revalidate_logistic_networks'
Construction_Drones/script/construction_drone.lua:1405: in function 'check_logistic_networks_to_validate'
Construction_Drones/script/construction_drone.lua:1428: in function 'handler'
Construction_Drones/control.lua:37: in function <Construction_Drones/control.lua:35>
