i got this problem 
I'm sorry, but an uncaught exception occurred.
While running game code:
IOError: Couldn't find file 'bgm/SEMARGL - Credo Revolution (Zardonic Remix).mp3'.
-- Full Traceback ------------------------------------------------------------
Full traceback:
  File "renpy/common/_layout/screen_main_menu.rpym", line 28, in script
    python hide:
  File "C:\Users\SPIDER\Downloads\Compressed\BastardGirlsR-1.1-pc\renpy\ast.py", line 900, in execute
    renpy.python.py_exec_bytecode(self.code.bytecode, self.hide, store=self.store)
  File "C:\Users\SPIDER\Downloads\Compressed\BastardGirlsR-1.1-pc\renpy\python.py", line 1930, in py_exec_bytecode
    exec bytecode in globals, locals
  File "renpy/common/_layout/screen_main_menu.rpym", line 28, in <module>
    python hide:
  File "renpy/common/_layout/screen_main_menu.rpym", line 35, in _execute_python_hide
    ui.interact()
  File "C:\Users\SPIDER\Downloads\Compressed\BastardGirlsR-1.1-pc\renpy\ui.py", line 289, in interact
    rv = renpy.game.interface.interact(roll_forward=roll_forward, **kwargs)
  File "C:\Users\SPIDER\Downloads\Compressed\BastardGirlsR-1.1-pc\renpy\display\core.py", line 2690, in interact
    repeat, rv = self.interact_core(preloads=preloads, trans_pause=trans_pause, **kwargs)
  File "C:\Users\SPIDER\Downloads\Compressed\BastardGirlsR-1.1-pc\renpy\display\core.py", line 3360, in interact_core
    renpy.audio.audio.periodic()
  File "C:\Users\SPIDER\Downloads\Compressed\BastardGirlsR-1.1-pc\renpy\audio\audio.py", line 1019, in periodic
    six.reraise(exc[0], exc[1], exc[2])
  File "C:\Users\SPIDER\Downloads\Compressed\BastardGirlsR-1.1-pc\renpy\audio\audio.py", line 997, in periodic_thread_main
    periodic_pass()
  File "C:\Users\SPIDER\Downloads\Compressed\BastardGirlsR-1.1-pc\renpy\audio\audio.py", line 938, in periodic_pass
    c.periodic()
  File "C:\Users\SPIDER\Downloads\Compressed\BastardGirlsR-1.1-pc\renpy\audio\audio.py", line 420, in periodic
    topf = load(self.file_prefix + filename + self.file_suffix)
  File "C:\Users\SPIDER\Downloads\Compressed\BastardGirlsR-1.1-pc\renpy\audio\audio.py", line 72, in load
    rv = renpy.loader.load(fn)
  File "C:\Users\SPIDER\Downloads\Compressed\BastardGirlsR-1.1-pc\renpy\loader.py", line 576, in load
    raise IOError("Couldn't find file '%s'." % name)
IOError: Couldn't find file 'bgm/SEMARGL - Credo Revolution (Zardonic Remix).mp3'.
Windows-8-6.2.9200
Ren'Py 7.2.2.491
Bastard GirlsR 1.1
Wed Jul 31 18:34:39 2019