Thanks, I've successfully downloaded the saved game!
Update on this error; this exact crash error also consistently occurs anytime any vehicle (including the vanilla car and modded vehicles) has at anytime in the past been "selected" by the autodrive remote, and then that vehicle either gets destroyed or mined. So, even if the vehicle is no longer actively selected by the remote, but gets destroyed or mined, this exact crash error occurs.
That's to be expected, because the same function is called for on_entity_died, on_robot_mined_entity, on_player_mined_entity, and script_raised_destroy. I've fixed this crash now. However, I can't upload yet because somehow I've managed to introduce a new bug which makes the mod useless. When you select a destination, the vehicles get stuck in a loop where they continuously try to repath without ever moving. I hope you'll understand that I can't release the version with the fix for your bug yet. :-D