Home Assistant supervisor updates

My HA instance boots from a usb ssd on a raspberry pi,
lately when attempting any supervisor updates system crashes and and will not restart.
I can only getting it working again by reinstalling HA from a back up.
All other updates e.g core work ok.
Anybody had similar issues
Thanks

I have now installed a pijuice ups hat to see if that solves issue.
As my pi boots home assistant from usb ssd (no sdcard) can anybody advise how I can install pijuice software?
Thanks again