aws elastic beanstalk 502 bad gateway

2024/02/19 07:33:46 [error] 527294#527294: *1 c onnect() failed (111: Connection refused) while connecting to upstream, client: 121.66.214.85, server: , request: "GET / HTTP/1.1", upstream: "http://127.0.0.1:8080/", host: "nodejspractice-env.eba-vyzg2uwi.ap-northeast-2.elasticbeanstalk.com"
2024/02/19 07:33:46 [error] 527295#527295: *3 connect() failed (111: Connection refused) while connecting to upstream, client: 121.66.214.85, server: , request: "GET /favicon.ico HTTP/1.1", upstream: "http://127.0.0.1:8080/favicon.ico", host: "nodejspractice-env.eba-vyzg2uwi.ap-northeast-2.elasticbeanstalk.com", referrer: "http://nodejspractice-env.eba-vyzg2uwi.ap-northeast-2.elasticbeanstalk.com/"
2024/02/19 07:33:46 [error] 527295#527295: *3 connect() failed (111: Connection refused) while connecting to upstream, client: 121.66.214.85, server: , request: "GET / HTTP/1.1", upstream: "http://127.0.0.1:8080/", host: "nodejspractice-env.eba-vyzg2uwi.ap-northeast-2.elasticbeanstalk.com", referrer: "http://203.233.19.11/"
2024/02/19 07:33:46 [error] 527295#527295: *3 connect() failed (111: Connection refused) while connecting to upstream, client: 121.66.214.85, server: , request: "GET /favicon.ico HTTP/1.1", upstream: "http://127.0.0.1:8080/favicon.ico", host: "nodejspractice-env.eba-vyzg2uwi.ap-northeast-2.elasticbeanstalk.com", referrer: "http://nodejspractice-env.eba-vyzg2uwi.ap-northeast-2.elasticbeanstalk.com/"
로그를 받아서 확인해보니 이런 식으로 오류가 나서 aws 인스턴스에 접속해서 nginx 구성 요소를 바꾸어 봤는데도 오류가 계속 발생하네요..
해결 방법이 있을까요..?