InComfort stopt working

My InComfort app workt for 3month, without any issues .
But i had to power down the complete supply to my home, and afterwards
power op again. but after reboot it does not startup anymore

at the logging, it reposts:

Logger: homeassistant.setup
First occurred: 22:06:17 (1 occurrences)
Last logged: 22:06:17

Error during setup of component incomfort
Traceback (most recent call last):
File “/usr/src/homeassistant/homeassistant/”, line 404, in _async_setup_component
result = await task
File “/usr/src/homeassistant/homeassistant/components/incomfort/”, line 57, in async_setup
heaters = incomfort_data[“heaters”] = list(await client.heaters())
File “/usr/local/lib/python3.12/site-packages/incomfortclient/”, line 205, in heaters
raise InvalidHeaterList
incomfortclient.InvalidHeaterList: There is no valid Heater in the heaterlist (check the binding between the gateway and the heater)

it was working before reboot, but now not anymore
I reboot and restart HA several times but still the same error

in config.jaml i have only this:

# Example configuration.yaml entry, newer firmware with user credentials
  username: !secret ketel_username
  password: !secret ketel_password

IP is not changed
also with the username and password i can login to gatway of intergas

what is wrong ???

After waiting for at least 6h i did a reboot of HA again
And yes it was running again. It look like it needs more then 2 hours to get a binding