AttributeError: 'PosixPath' object has no attribute 'lower

[newadventure079]

Traceback (most recent call last):
  File "/Users/me/.venv/ptpuploader/bin/ReleaseInfoMaker", line 8, in <module>
    sys.exit(run())
  File "/Users/me/.venv/ptpuploader/lib/python3.9/site-packages/PtpUploader/ReleaseInfoMaker.py", line 161, in run
    releaseInfoMaker.MakeReleaseInfo(
  File "/Users/me/.venv/ptpuploader/lib/python3.9/site-packages/PtpUploader/ReleaseInfoMaker.py", line 128, in MakeReleaseInfo
    self.SaveReleaseDescriptionFile(
  File "/Users/me/.venv/ptpuploader/lib/python3.9/site-packages/PtpUploader/ReleaseInfoMaker.py", line 86, in SaveReleaseDescriptionFile
    self.MarkAsDvdImageIfNeeded(releaseInfo)
  File "/Users/me/.venv/ptpuploader/lib/python3.9/site-packages/PtpUploader/ReleaseInfoMaker.py", line 65, in MarkAsDvdImageIfNeeded
    if file.lower().endswith(".ifo"):
AttributeError: 'PosixPath' object has no attribute 'lower