Response object has no attribute next error

[Damian Esteban]

This tool has always worked flawlessly for me, but I'm now getting the following error:

'Response' object has no attribute 'next' (type: AttributeError)

Thank you.

[Bryce Platt]

I keep getting a similar error too

[-] Logging into Safari Books Online...
[#] Unhandled Exception: 'next' (type: KeyError)
[!] Aborting...