I'm sorry, but an uncaught exception occurred.
After initialization, but before game start.
File "game/screens.rpy", line 480, in prepare_screen
File "game/screens.rpy", line 480, in prepare
File "game/screens.rpy", line 488, in prepare
File "game/screens.rpy", line 488, in prepare
File "game/screens.rpy", line 557, in prepare
File "game/screens.rpy", line 557, in prepare
File "game/screens.rpy", line 564, in prepare
File "game/screens.rpy", line 564, in prepare
File "game/screens.rpy", line 566, in prepare
File "game/screens.rpy", line 566, in prepare
File "game/screens.rpy", line 569, in prepare
File "game/screens.rpy", line 569, in prepare
File "renpy/common/00preferences.rpy", line 501, in Preference
File "renpy/common/00preferences.rpy", line 499, in get
Exception: Preference(u'background choices', u'modded1') is unknown.