IndexError: list index out of range" & "TypeError: The view function f: Flask Web App

[joelbeater992]

Hi Larz,

thanks for getting back to me with what i think is pretty close to a solution for my issue, after trying your suggestion for the (pay) function i get the following error, how would i reseolve this?

Error:
Traceback (most recent call last):
  File "/Users/jay/.pyenv/versions/3.9.5/lib/python3.9/site-packages/flask/app.py", line 2088, in __call__
    return self.wsgi_app(environ, start_response)
  File "/Users/jay/.pyenv/versions/3.9.5/lib/python3.9/site-packages/flask/app.py", line 2073, in wsgi_app
    response = self.handle_exception(e)
  File "/Users/jay/.pyenv/versions/3.9.5/lib/python3.9/site-packages/flask/app.py", line 2070, in wsgi_app
    response = self.full_dispatch_request()
  File "/Users/jay/.pyenv/versions/3.9.5/lib/python3.9/site-packages/flask/app.py", line 1515, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/Users/jay/.pyenv/versions/3.9.5/lib/python3.9/site-packages/flask/app.py", line 1513, in full_dispatch_request
    rv = self.dispatch_request()
  File "/Users/jay/.pyenv/versions/3.9.5/lib/python3.9/site-packages/flask/app.py", line 1499, in dispatch_request
    return self.ensure_sync(self.view_functions[rule.endpoint])(**req.view_args)
  File "/Users/jay/Documents/GitHub/MAPS/Ubuntu/var/www/optus/OPTUS/app_cc.py", line 137, in pay
    cc = "{}{1}{2}{3}".format(request.form.get('first'),
ValueError: cannot switch from automatic field numbering to manual field specification

Your help is much appreciated :)