Failing ansible playbook

launch_remote_container.yml

# playbooks/launch_container.yml
---
- hosts: cloud_servers
  connection: lxd
  tasks:
    - name: Launch a container on remote
      lxd_container:
        trust_password: myhellasecurepasskey
        url: https://lxdremote.example.com:8443
        name: sandbox1
        state: started
        source:
          type: image
          mode: pull
          server: https://images.linuxcontainers.org
          protocol: simplestreams
          alias: ubuntu/xenial/amd64
        profiles: ["default"]
        wait_for_ipv4_addresses: true
        timeout: 600