Trying to use with KbsyncTool, no remote port found error

[Nikostito]

I am trying to download an old app version using kbsynctool on a jailbroken idevice. I get this error output on the script:

File "contrib-ipatool-py/main.py", line 474, in
main()
File "contrib-ipatool-py/main.py", line 472, in main
tool.tool_main()
File "contrib-ipatool-py/main.py", line 163, in tool_main
args.func(args)
File "contrib-ipatool-py/main.py", line 355, in handleDownload
self.downloadOne(args)
File "contrib-ipatool-py/main.py", line 377, in downloadOne
downResp = Store.download(self.appId, self.appVerId, isRedownload=not args.purchase)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "contrib-ipatool-py/reqs/store.py", line 252, in download
return self.buyProduct(appId, appVer, pricingParameters='STDRDL' if isRedownload else 'STDQ')
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "contrib-ipatool-py/reqs/store.py", line 163, in buyProduct
itunes_internal = self.iTunes_provider(url)
^^^^^^^^^^^^^^^^^^^^^^^^^
File "contrib-ipatool-py/main.py", line 226, in handle_iTunes_provider
kbsync = bytes.fromhex(ret.pop('kbsync'))
^^^^^^^^^^^^^^^^^
KeyError: 'kbsync'

Also in the ios terminal app, I get the error:
no remote port found

The command I try to execute is:
python3 main.py lookup -b com.foo.bar -c XX download -s http://XXX.XXX.X.XX:9000/ --appVerId 12345678

[BuIlDaLiBlE]

Same problem here.

[wxhbts]

Same problem here.

[arm64x]

Same problem here.

[NyaMisty]

@Lessica can you have a look?