I tried removing the top fieldset tag, but no luck unfortunately.
I was thinking I needed to nest the 2nd fieldset below the first one. The removal of the 1st one doesn’t work unfortunately.
Thank you so much! your advice helped me greatly, I originally thought the opening fieldset element just counted as one fieldset. Then, I looked again after you told me your advice, and figured out that the original opening and closing fieldset count as 1 fieldset haha. Thank you so much for your advice it helped a lot.