Rescepy error SFX support not on or not a RAR archive

HI, I have set up Rescepy as per the guide found here (http://rescene.wikidot.com/rescepy) however I get the following error when I try to verify a release, anyone come across this before?

rescepy "D:\ADl_Fail\Mike_Mike-Unimaginable-CD-FLAC-2001-JLM\"

Processing: Mike_Mike-Unimaginable-CD-FLAC-2001-JLM

Traceback (most recent call last):
File "c:\rescepy\resce.py", line 669, in <module>
if main(d, args) == False:
File "c:\rescepy\resce.py", line 558, in main
srrlist = srr.filelist()
File "c:\rescepy\rescepy\srr.py", line 51, in filelist
srrinfo = rescene.info(self.filename)
File "C:\Users\Administrator\.pyenv\pyenv-win\versions\2.7.18\lib\site-packages\rescene\main.py", line 979, in info
for block in RarReader(srr_file).read_all():
File "C:\Users\Administrator\.pyenv\pyenv-win\versions\2.7.18\lib\site-packages\rescene\rar.py", line 1455, in init
raise ValueError("SFX support not on or not a RAR archive.")
ValueError: SFX support not on or not a RAR archive.

I used to have this working some time back and all was working well.