Struggling with Ecobee Temperature Condition for Automation

Configuration
1

Hi,

I am struggling with the conditional portion of a motion-sensor triggered event. The logic is that I want me walking into my office to trigger the fan, if the temperature is above 24C.

Below is the YAML code. My problem is my ignorance in understanding how to read data from the Ecobee. When I test the Conditional logic, I receive “template value should be a string for dictionary value @ data[‘value_template’]. Got None” as the error message.

alias: My Office Fan Auto-On
description: 
trigger:
  - type: motion
    platform: device
    device_id: dd0f76fb0137bd63234ef76cc347f1b7
    entity_id: binary_sensor.my_office_motion_sensor_motion
    domain: binary_sensor
    for:
      hours: 0
      minutes: 10
      seconds: 0
condition:
  - condition: numeric_state
    entity_id: sensor.home_temperature
    value_template: '{{ states(sensor.home_temperature) }}'
    above: '24'
  - condition: time
    after: '08:05:00'
    before: '22:00:00'
    weekday:
      - mon
      - tue
      - wed
      - thu
      - fri
      - sat
      - sun
action:
  - device_id: 08b18bf1ab13ae7e5f961a419d8561a2
    domain: fan
    entity_id: fan.my_office_fan
    type: turn_on
mode: single

Thank you