it seems you have deleted the input element so please rest your code, then find the input element, put the opening form tag just before it and the closing form tag just after it
I’ve edited your post for readability. When you enter a code block into a forum post, please precede it with a separate line of three backticks and follow it with a separate line of three backticks to make it easier to read.
You can also use the “preformatted text” tool in the editor (</>) to add backticks around text.
you need to have exctly the same input element as it was before, if it’s different the tests fail. Maybe reset your code and add again the form element?