HA template sensor and automation help

gatos_aviso_2.yaml

binary_sensor:
  - platform: template
    sensors:
      gatos_aviso_binary:
        friendly_name: "Gatos Suelo Binary Sensor"
        value_template: >-
          {% if states('sensor.temperature_gatos_suelo') == 'unknown'
          or states('sensor.temperature_gatos_suelo') == 'unavailable'
          or (utcnow() - states.sensor.temperature_gatos_suelo.last_updated).total_seconds() | round(0) > 60 %}
          off
          {% else %}
          on
          {%endif%}


- id: gatos_aviso
  alias: Gatos aviso sensor suelo no actualiza
  description: ''
  trigger:
    - platform: state
    entity_id: binary_sensor.gatos_aviso_binary
    to: 'off'
    for: 30 min
  condition: []
  action:
    - service: notify.mobile_app_mi_9t_pro
      data:
        title: Atencíon
        message: Sensor Gatos suelo no actualiza desde hace a menos media hora
  mode: single