When I attempted the install at myhost:8125 and submit the page I, also, got a http 500. I used to manage this issue by updating the portainer stack in the editor to this one below :
CodeAlles anzeigenversion: '2.1' services: piwigo: image: lscr.io/linuxserver/piwigo:latest container_name: piwigo environment: - PUID=1000 ##change to your user id. It cannot be the root user - PGID=100 ##change to your user group ID - TZ=Europe/Paris volumes: - /srv/dev-disk-by-uuid-YOUR_UUID/var/piwigo/web:/config ##this is the omv shared folders absolute path to where you have your media ports: - 8125:80 restart: unless-stopped mariadb: image: lscr.io/linuxserver/mariadb:latest container_name: piwigodb environment: - PUID=1000 ##change to your user id. I use root since I am on a closed system - PGID=100 ##change to your user group ID. Again I use root since I am on a closed system - MYSQL_ROOT_PASSWORD=YOUR_ROOT_PASSWORD ##set a password - TZ=Europe/Paris - MYSQL_DATABASE=piwigo - MYSQL_USER=piwigo - MYSQL_PASSWORD=YOUR_PIWIGO_PASSWORD volumes: - /srv/dev-disk-by-uuid-YOUR_UUID/var/piwigo/db:/config ##point this to your omv5 shared folders absolute path ports: - 3306:3306 restart: unless-stopped
Are those volumes LITERAL or you just hidden your UUID?
For the record, NO ONE will be able to hack your OMV by knowing the UUIDs of the drives
And, since your post is a bit vague, are you able to connect to piwigo or are you asking something?