Invalid response, status code: 401 - Data: {"code":"4106", "message": "New version app has been published"}

[MetalOctopus]

TLDR;
Changes requires to session.py
-> Update app version to 1.20 on line 111

Cheers to Cheesekeeper for the solution this time around.
lostfields/python-panasonic-comfort-cloud#85
Note: Cheesekeeper suggests adding quotes around the number 0 on line 125, but this was not required in my case.

Guide for pcomfortcloud and HACS users.

ssh into your HomeAssistant box
docker container ls

Copy your Home-Assistant CONTAINER ID
Mine is 572e4558ea59 so:
docker exec -it -u root 572e4558ea59 sh

Find the pcomfortcloud directory:
pip show pcomfortcloud
eg: Location: /usr/local/lib/python3.11/site-packages

Backup your session.py
cp /usr/local/lib/python3.11/site-packages/pcomfortcloud/session.py /usr/local/lib/python3.11/site-packages/pcomfort cloud/session.py.bak

Edit session.py
nano /usr/local/lib/python3.11/site-packages/pcomfortcloud/session.py

Find the line that has app version (Ctrl+W, X-APP-VERSION, enter)
Mine is line 111

Change
"X-APP-VERSION": "1.19.0" to "X-APP-VERSION": "1.20.0"

Ctrl+X to exit, Y to write changes to file
exit to exit docket
sudo reboot now to restart your HomeAssistant machine

[helicalchris]

As linked above the Panasonic ac app has just been updated with the version number change. Could the HACS repo be updated with this?

[djbulsink]

This issue is resolved. There is a new version of https://pypi.org/project/pcomfortcloud released and updated in the custom integration.