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you either have a corrupt savegame or a corrupt autodriveconfig file.
Be sure the config file is in your current savegame folder.
make a copy of the current config file and userdata file and save to another folder
delete the 2 files out of the savegame folder.
Start your game and save it.
insert a new copy of xmans autodrive config file and start your game.
Check to see if works ok.
If so then you may keep this and redo all your courses you edited in. Hopefully not to much trouble to do.