python_retro Running Mesen Core Error

[one808]

super().__init__(libpath, **kw)

File "D:\Python\Python37-32\lib\site-packages\py_retro\core.py", line 72, in init
self.llw.set_video_refresh(self._video_refresh_wrapper)
OSError: exception: access violation reading 0x00000064
Exception ignored in: <function EmulatedSystem.del at 0x03AF5C48>
Traceback (most recent call last):
File "D:\Python\Python37-32\lib\site-packages\py_retro\core.py", line 86, in del
OSError: exception: access violation reading 0x00000000