Invalid config for [sensor]: required key not provided @ data['platform']. Got None.

configuration.yaml

# Configure a default setup of Home Assistant (frontend, api, etc)
default_config:

# Text to speech
tts:
  - platform: google_translate

automation: !include automations.yaml
script: !include scripts.yaml
scene: !include scenes.yaml

sensor:
  - platform: fusion_solar_kiosk
    kiosks:
    - url: "https://region02eu5.fusionsolar.huawei.com/pvmswebsite/nologin/assets/build/index.html#/kiosk?kk=xxx"
      name: "Solceller"
# Easyserv värmepump REST API
  - platform: rest
    resource: https://easyserv.local:8080/api/metrics?authkey=xxxx
    verify_ssl: false
    name: heatpump
    json_attributes:
      - HotwaterTemp1
      - HotwaterTemp2
      - IndoorTemp
      - OutdoorTemp
      - RadiatorForwardTemp
      - RadiatorReturnTemp
      - HeatCarrierInTemp
      - HeatCarrierOutTemp
      - BrineInTemp
      - BrineOutTemp
      - HotGasTemp
      - CompressorState
      - ColdCircuitPumpState
      - HeatCircuitPumpState
      - RadiatorPumpState
      - AddHeat2State
      - AddHeat1State
      - SwitchValve1State
      - HeatingSetpointTemp
      - HotwaterSetpointTemp
      - AddHeatLevelPercent
      - SumAlarm
    value_template: '{{ value_json.CompressorState }}'
  - platform: template
    sensors:
      hotwater_temp:
        friendly_name: 'Varmvatten'
        unit_of_measurement: 'C'
        value_template: '{{ states.sensor.heatpump.attributes.HotwaterTemp1 }}'
      outdoor_temp:
        friendly_name: "Utomhus-temp"
        unit_of_measurement: 'C'
        device_class: temperature
        value_template: '{{ states.sensor.heatpump.attributes.OutdoorTemp }}'
      radiator_forward:
        friendly_name: 'Framledning'
        unit_of_measurement: 'C'
        value_template: '{{ states.sensor.heatpump.attributes.RadiatorForwardTemp }}'
      radiator_return:
        friendly_name: 'Returledning'
        unit_of_measurement: 'C'
        value_template: '{{ states.sensor.heatpump.attributes.RadiatorReturnTemp }}'
      heatcarrier_in:
        friendly_name: 'Värmebärare in'
        unit_of_measurement: 'C'
        value_template: '{{ states.sensor.heatpump.attributes.HeatCarrierInTemp }}'
      heatcarrier_out:
        friendly_name: 'Värmebärare ut'
        unit_of_measurement: 'C'
        value_template: '{{ states.sensor.heatpump.attributes.HeatCarrierOutTemp }}'
      brine_in:
        friendly_name: 'Köldbärare in'
        unit_of_measurement: 'C'
        value_template: '{{ states.sensor.heatpump.attributes.BrineInTemp }}'
      brine_out:
        friendly_name: 'Köldbärare ut'
        unit_of_measurement: 'C'
        value_template: '{{ states.sensor.heatpump.attributes.BrineOutTemp }}'
      hotgas:
        friendly_name: 'Hetgas'
        unit_of_measurement: 'C'
        value_template: '{{ states.sensor.heatpump.attributes.HotGasTemp }}'
      compressor_state:
        friendly_name: "Kompressor"
        value_template: >-
          {% if states.sensor.heatpump.attributes.CompressorState > 0 %}
            På
          {% else %}
            Av
          {% endif %}
      switchvalve_state:
        friendly_name: "Växelventil"
        value_template: >-
          {% if states.sensor.heatpump.attributes.SwitchValve1State > 0 %}
            På
          {% else %}
            Av
          {% endif %}
      radiatorpump_state:
        friendly_name: "Radiatorpump"
        value_template: >-
          {% if states.sensor.heatpump.attributes.RadiatorPumpState > 0 %}
            På
          {% else %}
            Av
          {% endif %}
      coldcircuitpump_state:
        friendly_name: "Köldbärarpump"
        value_template: >-
          {% if states.sensor.heatpump.attributes.ColdCircuitPumpState > 0 %}
            På
          {% else %}
            Av
          {% endif %}

# nordpool:

# sensor:
  - platform: nordpool

    # Should the prices include vat? Default True
    VAT: True

    # What currency the api fetches the prices in
    # this is only need if you want a sensor in a non local currency
    currency: "SEK"
    
    # Option to show prices in cents (or the equivalent in local currency)
    price_in_cents: false

    # Helper so you can set your "low" price
    # low_price = hour_price < average * low_price_cutoff
    low_price_cutoff: 0.95

    # What power regions your are interested in.
    # Possible values: "DK1", "DK2", "FI", "LT", "LV", "Oslo", "Kr.sand", "Bergen", "Molde", "Tr.heim", "Tromsø", "SE1", "SE2", "SE3","SE4", "SYS", "EE"
    region: "SE4"
    # How many decimals to use in the display of the price
    precision: 3

    # What the price should be displayed in default
    # Possible values: MWh, kWh and Wh
    # default: kWh
    price_type: kWh

    # This option allows the usage of a template to add a tariff.
    # now() always refers start of the hour of that price.
    # this way we can calculate the correct costs add that to graphs etc.
    # The price result of the additional_costs template expects this additional cost to be in kWh and not cents as a float
    # default {{0.0|float}}
    # additional_costs: "{{0.0|float}}"

  - name: Electricity price level (1-day)
    icon: mdi:currency-usd
    state: >-
        {% set price_cur = states('sensor.electricity_price_tibber') | float(0) %}
        {% set price_avg = state_attr('sensor.electricity_price_tibber', 'avg_price') | float(0) %}
        {% if price_cur == 0 or price_avg == 0 %}
            unknown
        {% else %}
            {% set price_ratio = (price_cur / price_avg) %}
            {% if price_ratio >= 1.4 %}
                VERY_EXPENSIVE
            {% elif price_ratio >= 1.15 %}
                EXPENSIVE
            {% elif price_ratio <= 0.6 %}
                VERY_CHEAP
            {% elif price_ratio <= 0.9 %}
                CHEAP
            {% else %}
                NORMAL
            {% endif %}
        {% endif %}