I’m not certain but I think it might be to do with this: “AssertionError: All your radio-buttons must have a value attribute”
If you click on the 13, that’s the first part of the error message.
To me, it looks like it is expecting you to provide a value to each button so that when the form is “submitted”, you are then able to see which button has been selected i.e. value = “satisfied”
If the code is submitted at the moment, with no value, you would not know which one of the buttons with the name “radio1”, “radio2” etc. had been selected.