favorite list에 영화가 추가되지 않습니다

좋아요 버튼을 눌러도 뒤로 갔다 다시 돌아오면 적용이 안되어있고 favorite page에도 나오지 않네요ㅠㅠ

좋아요 버튼을 누를 땐 console.log에 어떤 값들이 들어가는지 잘 되는데 서버에 저장이 안되는 것 같습니다 ㅠㅠ

아래 에러도 같이 뜨는데 무슨문제일까요?

[1] [HPM] Error occurred while trying to proxy request /api/favorite/favorited from localhost:3000 to http://localhost:5000 (ECONNRESET) (https://nodejs.org/api/errors.html#errors_common_system_errors)
[1] [HPM] Error occurred while trying to proxy request /api/favorite/favorited from localhost:3000 to http://localhost:5000 (ECONNRESET) (https://nodejs.org/api/errors.html#errors_common_system_errors)
[1] [HPM] Error occurred while trying to proxy request /api/favorite/favoriteNumber from localhost:3000 to http://localhost:5000 (ECONNRESET) (https://nodejs.org/api/errors.html#errors_common_system_errors)
[1] [HPM] Error occurred while trying to proxy request /api/favorite/favoriteNumber from localhost:3000 to http://localhost:5000 (ECONNRESET) (https://nodejs.org/api/errors.html#errors_common_system_errors)

제 깃헙주소 입니다 : https://github.com/heyoni/react_native/tree/main/boilerplate-mern-stack-master