Unable to upload posters for some movies "*.bunlde" not a directory

Sadly not by itself.

I recommend, that you install ExportTools, and then run an export on your movie library at level 666

See: Movie Export Level · ukdtom/ExportTools.bundle Wiki · GitHub

After that, search the CSV/XLSX file for f232d5805edf58170439523306c3a503d48b9e5.bundle to identify the movie, and do a Plex Dance on it
See: The Plex Dance ™

And if you already knows what movie, simply do the Plex Dance