Can't create AIO instance with Cloudflare Argo tunnel (port 443 problem)

I can’t finish the initial setup bacause my domain causes error “Domain does not point to this server or the reverse proxy is not configured correctly.”

I’m running Docker on a Raspberry, this is my compose:

services:
  nextcloud-aio-mastercontainer:
    image: nextcloud/all-in-one:latest
    init: true
    restart: always
    container_name: nextcloud-aio-mastercontainer
    volumes:
      - nextcloud_aio_mastercontainer:/mnt/docker-aio-config
      - /var/run/docker.sock:/var/run/docker.sock:ro
    ports:
      - 8080:8080
    environment:
      APACHE_PORT: 11000
      APACHE_IP_BINDING: 0.0.0.0
      SKIP_DOMAIN_VALIDATION: true

This is my Cloudflare record:

And this Nextcloud log:

NOTICE: PHP message: The response of the connection attempt to "https://nextcloud.xxxxxxx.com:443" was: error code: 502
NOTICE: PHP message: Expected was: 8675ddc18f0cde9fcff2ebe8ee8115dc500cc38a9c2b4e63

Guys what could I be doing wrong?