Smart Home Automation Forum

Hello guys,
I have been using three KC868-A8S boards on home assistant for some months now and I have realized that after sometimes the boards don't post data anymore and upon checking I find out that they complain about authentication 'authentication failure' (shared the photo). Has someone ever experienced this and how can I do away with it completely?

Hello admin, thank you for your reply, upon reviewing it looks like you referred me to something else which is google calendar issue while my problem is about KC868-A8S boards failing to be authenticated in Home assistant as shown in the screenshot