Bug the 2nd

I'm sorry, but an uncaught exception occurred.

While running game code:
  File "renpy/common/00start.rpy", line 218, in script
    python:
  File "renpy/common/00start.rpy", line 222, in <module>
    renpy.call_in_new_context("_main_menu")
  File "game/screens.rpy", line 305, in script
KeyError: u'_main_menu_screen'

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

Full traceback:
  File "C:\Program Files (x86)\Steam\steamapps\common\faultms1\renpy\bootstrap.py", line 277, in bootstrap
    renpy.main.main()
  File "C:\Program Files (x86)\Steam\steamapps\common\faultms1\renpy\main.py", line 472, in main
    run(restart)
  File "C:\Program Files (x86)\Steam\steamapps\common\faultms1\renpy\main.py", line 141, in run
    renpy.execution.run_context(True)
  File "C:\Program Files (x86)\Steam\steamapps\common\faultms1\renpy\execution.py", line 734, in run_context
    context.run()
  File "renpy/common/00start.rpy", line 218, in script
    python:
  File "C:\Program Files (x86)\Steam\steamapps\common\faultms1\renpy\ast.py", line 806, in execute
    renpy.python.py_exec_bytecode(self.code.bytecode, self.hide, store=self.store)
  File "C:\Program Files (x86)\Steam\steamapps\common\faultms1\renpy\python.py", line 1577, in py_exec_bytecode
    exec bytecode in globals, locals
  File "renpy/common/00start.rpy", line 222, in <module>
    renpy.call_in_new_context("_main_menu")
  File "C:\Program Files (x86)\Steam\steamapps\common\faultms1\renpy\game.py", line 313, in call_in_new_context
    return renpy.execution.run_context(False)
  File "C:\Program Files (x86)\Steam\steamapps\common\faultms1\renpy\execution.py", line 761, in run_context
    context.pop_all_dynamic()
  File "game/screens.rpy", line 305, in script
  File "C:\Program Files (x86)\Steam\steamapps\common\faultms1\renpy\execution.py", line 286, in pop_dynamic
    del store[k]
KeyError: u'_main_menu_screen'

Windows-8-6.2.9200
Ren'Py 6.99.10.1227
fault - milestone one multi v5.30