No webinterface connection possible typo base_url perhaps?

I think i made a type or mistake by changing the base_url information via the HA webinterface.
After an update of the system and a reboot a can no longer connect to HA via the webinterface.
We use a raspberry pi 4 with Home Assistant OS 13.1 and HA core 2024.10.3

It keeps showing loading data when opening webinterface
https://my_HA_URL:8123/lovelace

We are able to SSH in to the system.
Screenshot 2024-10-27 at 15.31.22

Looking in the log file seeing the message below:

ERROR (MainThread) [aiohttp.server] Error handling request
Traceback (most recent call last):
File “/usr/local/lib/python3.12/site-packages/aiohttp/web_protocol.py”, line 377, in data_received
messages, upgraded, tail = self._request_parser.feed_data(data)

I have tried to correct this in the /homeassistant/configuration.yaml files but it is not located in that file.
Adding this to the configuration file is not working also.

http:
base_url: https://domain_name_ha

Resulting in the log file after restart:
WARNING (MainThread) [homeassistant.helpers.config_validation] The ‘base_url’ option near /config/configuration. yaml:15 is deprecated, please remove it from your configuration

Where can i change the typo/mistake i made in base_url for HA via the SSH command line?

Thanks for the help!

Eddy