Error during HA startup

[lyricnz]

2023-05-07 11:22:26.131 ERROR (MainThread) [homeassistant.components.sensor] Error while setting up tplink_ess platform for sensor
Traceback (most recent call last):
  File "/Users/simonroberts/src/github/home-assistant/core/homeassistant/helpers/entity_platform.py", line 304, in _async_setup_platform
    await asyncio.shield(task)
  File "/Users/simonroberts/src/github/home-assistant/core/config/custom_components/tplink_ess/sensor.py", line 63, in async_setup_entry
    name = coordinator.data.get("stats")["stats"][i]["Port"]
TypeError: 'NoneType' object is not subscriptable