[nsfwalbum][error] An unexpected error occurred: JSONDecodeError

[lex-nova]

Testing album id: 707473

verbose log:

.\gallery-dl\nsfwalbum\707473 xxxxxxxxxxxxxxxxx (06.10.2020) - 194x\707473_045_64319965.jpg
[urllib3.connectionpool][debug] https://nsfwalbum.com:443 "GET /iframe_image.php?id=64319966 HTTP/1.1" 200 None
[urllib3.connectionpool][debug] https://nsfwalbum.com:443 "GET /backend.php?spirit=ggz0gzccz3cz1czd4z03z00z&photo=64319966 HTTP/1.1" 200 None
[nsfwalbum][error] An unexpected error occurred: JSONDecodeError - Expecting value: line 1 column 1 (char 0). Please run gallery-dl again with the --verbose fl
ag, copy its output and report this issue on https://github.com/mikf/gallery-dl/issues .
[nsfwalbum][debug]
Traceback (most recent call last):
File "gallery_dl\job.py", line 76, in run
File "gallery_dl\extractor\common.py", line 453, in items
File "gallery_dl\extractor\nsfwalbum.py", line 50, in images
File "requests\models.py", line 900, in json
File "json_init_.py", line 348, in loads
File "json\decoder.py", line 337, in decode
File "json\decoder.py", line 355, in raw_decode
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

Is it because of the server not sending correct response?
If so can we give it some retries if this happens?

Thanks.