unfortunately, i still get the same error. i gotta ignore both jakjail and jakprison in order to continue playing (i re-downloaded the game and started an entirely new file...still no good)
it might be a result of persistent data or old saves maybe? if you go to users > your user > appdata > renpy > courtin cowboys you will see all your saves/persistent data log
might help to clear the old saves and if that still doesnt work, try the persistent data :[ (you can make a copy of this folder somewhere else in case it still occurs)