I'm sorry, but an uncaught exception occurred.

While running game code:
  File "game/scripts/locations/school/school.rpy", line 185, in <module>
  File "game/scripts/core/systems/game.rpy", line 260, in main
  File "game/scripts/core/systems/locations.rpy", line 93, in call_screen
Exception: Unknown drawing type. None

-- Full Traceback ------------------------------------------------------------

Full traceback:
  File "scripts/locations/school/school.rpyc", line 185, in script
  File "/home/ncweber/SummertimeSaga-0.16.1-pc/renpy/ast.py", line 862, in execute
    renpy.python.py_exec_bytecode(self.code.bytecode, self.hide, store=self.store)
  File "/home/ncweber/SummertimeSaga-0.16.1-pc/renpy/python.py", line 1912, in py_exec_bytecode
    exec bytecode in globals, locals
  File "game/scripts/locations/school/school.rpy", line 185, in <module>
  File "game/scripts/core/systems/game.rpy", line 260, in main
  File "game/scripts/core/systems/locations.rpy", line 93, in call_screen
  File "/home/ncweber/SummertimeSaga-0.16.1-pc/renpy/exports.py", line 2710, in call_screen
    rv = renpy.ui.interact(mouse="screen", type="screen", roll_forward=roll_forward)
  File "/home/ncweber/SummertimeSaga-0.16.1-pc/renpy/ui.py", line 287, in interact
    rv = renpy.game.interface.interact(roll_forward=roll_forward, **kwargs)
  File "/home/ncweber/SummertimeSaga-0.16.1-pc/renpy/display/core.py", line 2649, in interact
    repeat, rv = self.interact_core(preloads=preloads, trans_pause=trans_pause, **kwargs)
  File "/home/ncweber/SummertimeSaga-0.16.1-pc/renpy/display/core.py", line 3132, in interact_core
    self.draw_screen(root_widget, fullscreen_video, (not fullscreen_video) or video_frame_drawn)
  File "/home/ncweber/SummertimeSaga-0.16.1-pc/renpy/display/core.py", line 2059, in draw_screen
    renpy.display.draw.draw_screen(surftree, fullscreen_video)
  File "gldraw.pyx", line 846, in renpy.gl.gldraw.GLDraw.draw_screen
  File "gldraw.pyx", line 1113, in renpy.gl.gldraw.GLDraw.draw_transformed
  File "gldraw.pyx", line 1113, in renpy.gl.gldraw.GLDraw.draw_transformed
  File "gldraw.pyx", line 1113, in renpy.gl.gldraw.GLDraw.draw_transformed
  File "gldraw.pyx", line 1113, in renpy.gl.gldraw.GLDraw.draw_transformed
  File "gldraw.pyx", line 1113, in renpy.gl.gldraw.GLDraw.draw_transformed
  File "gldraw.pyx", line 1113, in renpy.gl.gldraw.GLDraw.draw_transformed
  File "gldraw.pyx", line 1113, in renpy.gl.gldraw.GLDraw.draw_transformed
  File "gldraw.pyx", line 976, in renpy.gl.gldraw.GLDraw.draw_transformed
Exception: Unknown drawing type. None

Linux-4.15.0-29-generic-x86_64-with-debian-buster-sid
Ren'Py 7.0.0.196
SummertimeSaga 0.16.1
Wed Aug  1 23:03:02 2018