No download button on shared links

Can I get some help with this. Here is my file, and I've tried accessing in incognito but no option. What am I missing?

services:

immich-public-proxy:

image: alangrainger/immich-public-proxy:latest

container_name: immich-public-proxy

restart: always

ports:

- "127.0.0.1:3001:3000"

environment:

PUBLIC_BASE_URL: https://imm.mysite.com

IMMICH_URL: http://172.17.0.1:2283

singleImageGallery: true

allowDownloadAll: 1

healthcheck:

test: curl -s http://localhost:3000/share/healthcheck -o /dev/null || exit 1

start_period: 10s