i get this if i try plase mk2 or mk3 locomotive on rails:
Error while running event AudricSan_Realistic_Electric_Trains::on_tick (ID 0)
...San_Realistic_Electric_Trains__/logic/events/on_tick.lua:98: attempt to index field 'item' (a nil value)
stack traceback:
...San_Realistic_Electric_Trains__/logic/events/on_tick.lua:98: in function 'update_locomotive'
...San_Realistic_Electric_Trains__/logic/events/on_tick.lua:15: in function <...San_Realistic_Electric_Trains__/logic/events/on_tick.lua:6>
