client not defined?

[cmjames82]

C:\Nvidia-Notify-master>python notifier.py test
Enabling Selenium... Done!
Running on Windows
BestBuy 3080 IN STOCK
https://www.bestbuy.com/site/searchpage.jsp?st=3080
Starting search 0 at 13:54:03
Checking BestBuy 3080...
BestBuy 3080 IN STOCK
https://www.bestbuy.com/site/searchpage.jsp?st=3080
Traceback (most recent call last):
File "C:\Nvidia-Notify-master\notifier.py", line 214, in
main()
File "C:\Nvidia-Notify-master\notifier.py", line 204, in main
alert(site)
File "C:\Nvidia-Notify-master\notifier.py", line 85, in alert
sms_notification(site.get('url'))
File "C:\Nvidia-Notify-master\notifier.py", line 110, in sms_notification
client.messages.create(to=TWILIO_TO_NUM, from_=TWILIO_FROM_NUM, body=url)
NameError: name 'client' is not defined