Surfacing PassivLiving Hub data with Multiscrape

Configuration
1

I had a heat pump installed a few years ago, which I wanted to surface the power usage figures from. I noticed that the installers have put in an Eastron sdm630, I also found that this feeds into a passivLiving hub. Below is the install diagram.

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I have access to the PassivLiving hub via my network, and entering my ‘local IP address’/portal shows me several values like power usage, flow rate, etc. I looked up how to access this information in HA, and came across Multiscraper. Though I have messed up the config, it finds the entity I’ve added as it’s unavailable. Here is the code:

multiscrape:
  - name: passiveLivingHub
    resource: http://local-ip-address/portal/
    scan_interval: 60
    sensor:
    - unique_id: air-temperature-pl-hub
      name: Air Temperature PL-Hub
      device-class: temperature
      unit_of_measurement: °C
      select: "tr:nth-child(10) > td:nth-child(8)"
      value_template: "{{ value.replace('°C', '') }}"

Any help would be most appreciated.