OCPP failed to set up

I have installed the OCPP installation using Hacs and it does not load properly.
Have you got any idea ?

I can see the log below:

Logger: homeassistant.config_entries
Source: config_entries.py:402
First occurred: 06:16:35 (1 occurrences)
Last logged: 06:16:35

Error setting up entry central for ocpp
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/config_entries.py", line 402, in async_setup
    result = await component.async_setup_entry(hass, self)
  File "/config/custom_components/ocpp/__init__.py", line 70, in async_setup_entry
    central_sys = await CentralSystem.create(hass, entry)
  File "/config/custom_components/ocpp/api.py", line 192, in create
    self = CentralSystem(hass, entry)
  File "/config/custom_components/ocpp/api.py", line 183, in __init__
FileNotFoundError: [Errno 2] No such file or directory

The server charger was not properly configured. Once configured, the sensor and control worked fine. I am now facing an issue with the Devolo connection with the charger but that’s another issue.

What ended up being the problem in your configuration?

I read through the documentation for this and it seems to be missing something-- or maybe I’m the one missing it. :stuck_out_tongue:
It seems to imply it should just set up and work, but it definitely does not in my case.

Thanks in advance for any advice!