Initialization process of NexcloudPi ends in eternal loop

Hi @all,

I need a little help in order to get NextclouPi started by means of docker-compose.

On my Raspberry Pi4, I started a container based on the following docker-compose.yaml:

version: '3'
services:
  nextcloudpi:
    image: ownyourbits/nextcloudpi:latest
    command: "${IP}"
    ports:
     - "80:80"
     - "443:443"
     - "4443:4443"
    volumes:
     - ncdata4:/data
     - /etc/localtime:/etc/localtime:ro
    container_name: nextcloudpi

volumes:
  ncdata4:

IP is set to the local IP address of the Raspberry Pi.

After starting, I can access the web interface, receiving two passwords, and I can log into the admin area (Port 4443).
But when I navigate to the nextcloud itself (Port 80 or 443), a page telling the following is shown:

Initializing NextCloudPi for the first time
Please wait...

This site is refreshing itself in an eternal loop. Thus, Nextcloud cannot be used.

I appreciate any help!

Jan

Might be access rights issue, what does the log say?
Never use compose much myself, this ncp docker run always works for me.
Also, could be another program using ports 80/443. Logs?