psql: error: FATAL: database "" does not exist

[ylohnitram]

container log:
backup: PostgreSQL started
backup: Creating database
backup: psql: error: FATAL: database "exampleuser" does not exist

container vars:
backup:
image: ghcr.io/ovrclk/akash-postgres-restore:v0.0.4
env:
- POSTGRES_DATABASE=exampledb
- POSTGRES_USER=exampleuser
- POSTGRES_PASSWORD=examplepass
- POSTGRES_HOST=postgres
- POSTGRES_PORT=5432
- BACKUP_PATH=db-backup/test
- BACKUP_KEY=XXXXX
- BACKUP_SECRET=XXXXX
- BACKUP_PASSPHRASE=XXXX
- BACKUP_HOST="https://s3.filebase.com"
- BACKUP_SCHEDULE="*/15 * * * *"
- BACKUP_RETAIN="7 days"
depends_on:
- service: postgres