Recent DAKboard issue

I have been running a DAKBoard on a Raspberry Pi 4 for almost 4 years now without any problems until recently following this guide IIRC.

About 2 weeks ago, DAKBoard started logging itself out and only shows a black screen with the time on it and the DAK logo in the lower right corner. If I go into the settings it will bring up the DAK page that shows I am not logged in. When I log in again it seems to work randomly for about 24-36 hours.

I'm running it in a kiosk mode browser on Raspberry Pi OS. I am using the free tier of DAKBoard.

Before I wipe the SD card and start over from scratch I was wondering if there were any suggestions? To be completely honest, it has been "set and forget" for the past number of years so I would like to make sure I'm not overlooking something pretty basic/easy.

On a side note: Has anyone had any experiense using the DAKBoard OS on a Pi? I don't remember it being an option when I set it up originally.

Thank you for any assistance and if you have any spare hardware laying around I'd highly recommend setting one up, my family finds it incredibly useful for the calendar function and a conversation piece when they notice different photos rotating in and out.