I've been trying to run my code: sudo docker-compose up dev-db -d

Docker Hub
,
1

&& it gives the following output/error:
[+] Running 0/0
⠿ dev-db Error 0.0s
Error response from daemon: Get “https://registry-1.docker.io/v2/”: dial tcp: lookup registry-1.docker.io on [::1]:53: read udp [::1]:36663->[::1]:53: read: connection refused

My docker-compose.yml file:

version: '3.9'
services:
  dev-db:
    image: postgres:13
    ports:
      - 5434:5432
    environment:
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: 123
      POSTGRES_DB: nest
    networks:
      - freecodecamp
networks:
  freecodecamp:
2

The remote host, vscode is connected to, has dns problems. Please do not ask how to fix it, without provided information about your setup.

Also, please format your code using a preformatted text block (</> icon). I did it for you this time.