Gold Cap Conure knocking on her cage at night

I have a 14 (approx) year old gold cap, over the last year she's started knocking on the bottom edge of her metal cage at night. We have her out when we're home, approx 1 hour in the AM and 2 hours in the PM. Lot's of love and attention on the weekends.

She has toys in her cage, stuffed animals she likes to man handle, she's covered and in a quiet area at night. She has good food, fresh water, TV during the day and a view outside. She has a companion bird, baths on the weekend, fruit and veggies daily.

I just want to be sure if she's missing something in her diet or her daily routine that we fill the gap.