It seems like you have the correct <textarea> element in your code. However, the error message you’re encountering might be due to the fact that you’ve used the attribute for instead of id in the <textarea> element.
Try updating the <textarea> element like this:
<textarea id="bio"></textarea>
This should resolve the error message, as the id attribute is used to uniquely identify the <textarea> element.
i just tried with the line that you’ve sent me, and now it says again: You should give the textarea element opening and closing tags. :(( it just doesn’t work in any way that i put it xdd