Getting error while deploying - address already in use

[DezyNation]

I'm trying to deploy Revolt on my VPS using docker. But I'm getting this error

Error starting userland proxy: listen tcp4 0.0.0.0:443: bind: address already in use

I have also updated my .env file but don't know why it's still considering 0.0.0.0 as HOSTNAME
Here's what I have configured in .env
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HOSTNAME=revolt.mydomain.com
REVOLT_APP_URL=https://revolt.mydomain.com/

I haven't touched the docker-compose.yml file.

[DezyNation]

I solved it by following the steps for reverse proxy. In your docker-compose.yml use any port which is available.

# Caddy web server
  caddy:
    image: caddy
    restart: always
    env_file: .env
    ports:
      - "4271:80"
      - "4272:443"
    volumes:
      - ./Caddyfile:/etc/caddy/Caddyfile
      - ./data/caddy-data:/data
      - ./data/caddy-config:/config

And then in your .env, mention the port you are reffering to:
HOSTNAME=:443