I'm sorry, but an uncaught exception occurred.
While running game code:
  File "renpy/common/00start.rpy", line 300, in script call
    call expression "before_main_menu"
  File "renpy/common/000statements.rpy", line 485, in execute_call_screen
    store._return = renpy.call_screen(name, *args, **kwargs)
  File "renpy/common/00action_file.rpy", line 434, in __call__
    renpy.load(fn)
Exception: Couldn't find a place to stop rolling back. Perhaps the script changed in an incompatible way?
-- Full Traceback ------------------------------------------------------------
Full traceback:
  File "renpy/common/00start.rpy", line 300, in script call
    call expression "before_main_menu"
  File "startup.rpyc", line 163, in script
  File "E:\...\WaifuAcademy-0.7.1a-pc\renpy\ast.py", line 1801, in execute
    self.call("execute")
  File "E:\...\WaifuAcademy-0.7.1a-pc\renpy\ast.py", line 1789, in call
    return renpy.statements.call(method, parsed, *args, **kwargs)
  File "E:\...\WaifuAcademy-0.7.1a-pc\renpy\statements.py", line 169, in call
    return method(parsed, *args, **kwargs)
  File "renpy/common/000statements.rpy", line 485, in execute_call_screen
    store._return = renpy.call_screen(name, *args, **kwargs)
  File "E:\...\WaifuAcademy-0.7.1a-pc\renpy\exports.py", line 2614, in call_screen
    rv = renpy.ui.interact(mouse="screen", type="screen", roll_forward=roll_forward)
  File "E:\...\WaifuAcademy-0.7.1a-pc\renpy\ui.py", line 287, in interact
    rv = renpy.game.interface.interact(roll_forward=roll_forward, **kwargs)
  File "E:\...\WaifuAcademy-0.7.1a-pc\renpy\display\core.py", line 2620, in interact
    repeat, rv = self.interact_core(preloads=preloads, trans_pause=trans_pause, **kwargs)
  File "E:\...\WaifuAcademy-0.7.1a-pc\renpy\display\core.py", line 3375, in interact_core
    rv = root_widget.event(ev, x, y, 0)
  File "E:\...\WaifuAcademy-0.7.1a-pc\renpy\display\layout.py", line 986, in event
    rv = i.event(ev, x - xo, y - yo, cst)
  File "E:\...\WaifuAcademy-0.7.1a-pc\renpy\display\layout.py", line 986, in event
    rv = i.event(ev, x - xo, y - yo, cst)
  File "E:\...\WaifuAcademy-0.7.1a-pc\renpy\display\layout.py", line 986, in event
    rv = i.event(ev, x - xo, y - yo, cst)
  File "E:\...\WaifuAcademy-0.7.1a-pc\renpy\display\screen.py", line 667, in event
    rv = self.child.event(ev, x, y, st)
  File "E:\...\WaifuAcademy-0.7.1a-pc\renpy\display\layout.py", line 986, in event
    rv = i.event(ev, x - xo, y - yo, cst)
  File "E:\...\WaifuAcademy-0.7.1a-pc\renpy\display\layout.py", line 239, in event
    rv = d.event(ev, x - xo, y - yo, st)
  File "E:\...\WaifuAcademy-0.7.1a-pc\renpy\display\layout.py", line 986, in event
    rv = i.event(ev, x - xo, y - yo, cst)
  File "E:\...\WaifuAcademy-0.7.1a-pc\renpy\display\layout.py", line 239, in event
    rv = d.event(ev, x - xo, y - yo, st)
  File "E:\...\WaifuAcademy-0.7.1a-pc\renpy\display\layout.py", line 986, in event
    rv = i.event(ev, x - xo, y - yo, cst)
  File "E:\...\WaifuAcademy-0.7.1a-pc\renpy\display\layout.py", line 239, in event
    rv = d.event(ev, x - xo, y - yo, st)
  File "E:\...\WaifuAcademy-0.7.1a-pc\renpy\display\behavior.py", line 897, in event
    return handle_click(self.clicked)
  File "E:\...\WaifuAcademy-0.7.1a-pc\renpy\display\behavior.py", line 832, in handle_click
    rv = run(action)
  File "E:\...\WaifuAcademy-0.7.1a-pc\renpy\display\behavior.py", line 306, in run
    return action(*args, **kwargs)
  File "renpy/common/00action_file.rpy", line 434, in __call__
    renpy.load(fn)
  File "E:\...\WaifuAcademy-0.7.1a-pc\renpy\loadsave.py", line 728, in load
    log.unfreeze(roots, label="_after_load")
  File "E:\...\WaifuAcademy-0.7.1a-pc\renpy\python.py", line 1759, in unfreeze
    self.rollback(0, force=True, label=label, greedy=greedy, on_load=True)
  File "E:\...\WaifuAcademy-0.7.1a-pc\renpy\python.py", line 1596, in rollback
    raise Exception("Couldn't find a place to stop rolling back. Perhaps the script changed in an incompatible way?")
Exception: Couldn't find a place to stop rolling back. Perhaps the script changed in an incompatible way?
Windows-8-6.2.9200
Ren'Py 6.99.14.3135
Waifu Academy 0.7.1a