nginx Role Error on Remove all configuration symlinks during config reset

[pfauenauge]

When running der nginx Role I receive an Error in section "Remove all configuration symlinks during config reset"

with Error Message:

fatal: [.....]: FAILED! => {
    "changed": false,
    "invocation": {
        "module_args": {
            "_raw_params": "rm -f /etc/nginx/sites-enabled/*",
            "_uses_shell": true,
            "argv": null,
            "chdir": null,
            "creates": "/etc/ansible/facts.d/nginx.fact",
            "executable": "sh",
            "removes": null,
            "stdin": null,
            "stdin_add_newline": true,
            "strip_empty_ends": true,
            "warn": false
        }
    },
    "msg": "Unsupported parameters for (ansible.legacy.command) module: warn. Supported parameters include: creates, executable, chdir, strip_empty_ends, _uses_shell, argv, stdin, _raw_params, stdin_add_newline, removes."
}

I use the versions:

ansible --version
ansible [core 2.14.1]
  config file = None
  configured module search path = ['~/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = ~/.local/lib/python3.9/site-packages/ansible
  ansible collection location = ~/.ansible/collections:/usr/share/ansible/collections
  executable location = ~/.local/bin/ansible
  python version = 3.9.2 (default, Feb 28 2021, 17:03:44) [GCC 10.2.1 20210110] (/usr/bin/python3)
  jinja version = 3.1.2
  libyaml = True

debops --version
debops 3.0.3

File causing the error:
debops/roles01/roles/nginx/tasks/main.yml
line 202..

  # If nginx local facts are not present, assume that configuration
  # is being reset and move all symlinks out of the way to prevent
  # accidental failures because of old wrong configuration files
- name: Remove all configuration symlinks during config reset
  shell: rm -f /etc/nginx/sites-enabled/*
  args:
    executable: '/bin/sh'
    creates: '/etc/ansible/facts.d/nginx.fact'
    warn: False
  when: (nginx__deploy_state in [ 'present' ])

When I remove the "warn: False" it works.

Is it save to just remove it and create a pull request or would the changes go to a different direction? I'm rather new to ansible & debops.

Thanks!