[nsfwalbum] 'NoneType' object is not iterable

[lex-nova]

[urllib3.connectionpool][debug] https://nsfwalbum.com:443 "GET /iframe_image.php?id=58316496 HTTP/1.1" 302 None
[urllib3.connectionpool][debug] https://nsfwalbum.com:443 "GET / HTTP/1.1" 200 None
[nsfwalbum][error] An unexpected error occurred: TypeError - 'NoneType' object is not iterable. Please run gallery-dl again with the --verbose flag, copy its output and re
port this issue on https://github.com/mikf/gallery-dl/issues .
[nsfwalbum][debug]
Traceback (most recent call last):
  File "gallery_dl\job.py", line 68, in run
  File "gallery_dl\extractor\common.py", line 432, in items
  File "gallery_dl\extractor\nsfwalbum.py", line 49, in images
  File "gallery_dl\extractor\nsfwalbum.py", line 61, in _annihilate
TypeError: 'NoneType' object is not iterable

maybe it's just unstable network, if so, can we allow some retries for error like that?
thanks.