blender导入场景报错

Traceback (most recent call last):

  File "C:\Users\lxyzbg\AppData\Roaming\Blender Foundation\Blender\2.93\scripts\addons\CATSzh-CNLang-main\extern_tools\mmd_tools_local\operators\fileio.py", line 163, in execute

    self._do_execute(context)

  File "C:\Users\lxyzbg\AppData\Roaming\Blender Foundation\Blender\2.93\scripts\addons\CATSzh-CNLang-main\extern_tools\mmd_tools_local\operators\fileio.py", line 182, in _do_execute

    importer_cls().execute(

  File "C:\Users\lxyzbg\AppData\Roaming\Blender Foundation\Blender\2.93\scripts\addons\CATSzh-CNLang-main\extern_tools\mmd_tools_local\core\pmx\importer.py", line 816, in execute

    self.__model = pmx.load(args['filepath'])

  File "C:\Users\lxyzbg\AppData\Roaming\Blender Foundation\Blender\2.93\scripts\addons\CATSzh-CNLang-main\extern_tools\mmd_tools_local\core\pmx\__init__.py", line 1598, in load

    header.load(fs)

  File "C:\Users\lxyzbg\AppData\Roaming\Blender Foundation\Blender\2.93\scripts\addons\CATSzh-CNLang-main\extern_tools\mmd_tools_local\core\pmx\__init__.py", line 262, in load

    raise InvalidFileError('File signature is invalid.')

mmd_tools_local.core.pmx.InvalidFileError: File signature is invalid.