'error: klipper mcu 'mcu' shutdown timer too close'

Basic Information:

Printer Model: Voron Trident
MCU / Printerboard: BTT Octopus V1.1 with RPI 3B+

Describe your issue:

My voron trident just started with an issue where its shutting down mid print with the error: klipper mcu ‘mcu’ shutdown timer too close. I have attached klippy log but I have no idea what I am looking at. Any ideas about this issue? It has happened four times in a row at different points in the print. I recently updated klipper on the RPI and the octopus board to the latest version, new name-brand SD cards, I have timelapse disabled for now. Running a basic pi webcam and telegram. Running Mainsail, not octoprint so not sure if the CPU is getting overloaded or why it would be it is always very low usage whenever I view it.

klippy (21).log (4.2 MB)

So far has been fixed by swapping to a RPI 4 I had lying around…