Docker Compose as directed

[Peter-TLF]

When I use this docker compose template, it gives this error in the log

version: '3'

services:
db:
image: postgres:latest
restart: always
volumes:
- /var/chiefonboarding/pg_data:/var/lib/postgresql/data
environment:
- POSTGRES_DB=chiefonboarding
- POSTGRES_USER=postgres
- POSTGRES_PASSWORD=postgres

app:
image: chiefonboarding/chiefonboarding:latest
restart: always
ports:
- "8888:8000"
environment:
- SECRET_KEY=***************************
- DATABASE_URL=postgres://postgres:postgres@db:5432/chiefonboarding
- ALLOWED_HOSTS=*****************
depends_on:
- db

Error:
"exec /usr/bin/supervisord: exec format error"