Reread the directions again to make sure you are using the correct url
and assign "https://www.freecatphotoapp.com/submit-cat-photo" to the action attribute of the form element.
You want to be careful about reading old posts because the challenges do change overtime.
The screenshot you are showing me is from July of 2017.
A lot has changed since then.
It is always important to carefully read through the directions so you are staying current with what the challenge wants you to do.