I get this error if i leave the train.
I play on 0.17.79

242.626 Error MainLoop.cpp:1195: Exception at tick 4762058: The mod Shuttle Train Continued caused a non-recoverable error.
Please report this error to the mod author.

Error while running event Shuttle_Train_Continued::on_player_driving_changed_state (ID 26)
__Shuttle_Train_Continued__/control.lua:363: bad argument #3 of 3 to '__newindex' (table expected, got nil)
stack traceback:
    [C]: in function '__newindex'
    __Shuttle_Train_Continued__/control.lua:363: in function 'leftVehicle'
    __Shuttle_Train_Continued__/control.lua:417: in function <__Shuttle_Train_Continued__/control.lua:395>

Getting the same error, also on 0.17.79. Only happens if the "Shuttle action on exit" setting is set to "Hibernate".

Apologies for the late reply I've been on holiday, yeah that error is caused by a change in the way train schedules are handled and a fix is planned for the first 0.18 release :)