Alert not sending SMS

Hi, I’m trying to set up an alert to send me an SMS if I’ve left the garage door open. I’m not sure if the problem is with the alert config or the notify config. Here’s what I have:

joaoapps_join:
  - name: android
    device_id: group.android
    api_key: ***

notify:
  - platform: joaoapps_join
    api_key: ***
    device_id: ***
    device_name: samsung
    name: s8
- platform: group
  name: my_phone
    services:
      - service: joaoapps_join
        data:
          target: 15551112222


alert:
  garage_door:
    name: Hey, the garage is open
    entity_id: cover.my_garage
    state: 'open'
    repeat: 2
    skip_first: True
    notifiers:
      - my_phone

TIA. This is driving me crazy!

Have you solved the problem?