copyparty failed to add the following files to the archive:

 file: 'wings/succubus.png'
error: [OSError] [Errno 5] I/O error
-- util.py:2922 <yieldfile>: buf = f.read(readsz)
-- szip.py:201 <ser>: for buf in yieldfile(src, self.args.iobuf):
-- szip.py:236 <gen>: for x in self.ser(f):
