설치 시 오류: node:20-slim failed

*[rebuild_images] done. [RESTORE] 보관된 사용자 데이터를 발견했습니다: /var/lib/easytrainer-keep [RESTORE] 복원: database [RESTORE] 복원: datasets [RESTORE] 복원: training_data [RESTORE] 복원(병합): config.json [RESTORE] 건너뜀(이미 존재): auth.json [RESTORE] 이미 존재해 건너뛴 항목이 있어 보관소를 남깁니다: /var/lib/easytrainer-keep (auth.json) [RESTORE] 4개 항목 복원 완료: database, datasets, training_data, config.json [POST] Running DB migrations in one-off container for 'backend' ... Migration complete. Ensured 14 tables exist. [DB] Migration complete [POST] Bringing up service 'backend' ... Image easytrainer-ros2:latest Building Image easytrainer-frontend Building Image easytrainer-backend:latest Building #1 [internal] load local bake definitions #1 reading from stdin 1.51kB done #1 DONE 0.0s

#2 [internal] load build definition from Dockerfile #2 transferring dockerfile: 506B done #2 DONE 0.0s

#3 [internal] load metadata for docker.io/library/node:20-slim #3 ERROR: unexpected status from HEAD request to https://registry-1.docker.io/v2/library/node/manifests/20-slim: 502 Bad Gateway

[internal] load metadata for docker.io/library/node:20-slim:

Dockerfile:1

1 | >>> FROM node:20-slim

2 |

3 | WORKDIR /app

failed to solve: node:20-slim: failed to resolve source metadata for docker.io/library/node:20-slim: unexpected status from HEAD request to https://registry-1.docker.io/v2/library/node/manifests/20-slim: 502 Bad Gateway*

설치 시 이런 오류가 나는데 어떻게 해야 하나요?