My brand new Odroid-M1 (8GB) with Debian 11 + openmediavault 6.3.2-2 crashed just few hours after installing (official method via petitboot netboot).
I went to sleep, left M1 powered ON and when woke up nothing worked - ssh failed to connect, openmediavault failed to login, samba shares were not working, etc. Hooked up monitor to M1 and was greeted by errors shown in picture:

Quick googling says its possible (known) bug (in Ubuntu at least) with some ssd's crashing when returning to sleep power states or something like that.
No idea if that is so..after re-powering device everything went back up and seems to work properly. Afterwards, I did uninstalled openmedivault-flashmemory plugin which was installed by default.
Somehow I suspect it might be responsible. But it just a speculation... I am using official power adapter 12V, 2A. So should not be problem with that.
If M1 will crash again this night or soon after I will remove openmediavault completely and reinstall debian 11 "from scratch". If it will crash even then, then will try Ubuntu.
My intent is to run M1 24/7, of course. Crashing is not acceptable...
m.2 ssd I am using is brand new Corsair Force MP510 NVMe PCIe Gen3 x4 M.2 1920GB SSD (CSSD-F1920GBMP510), firmware - ECFM15.1.
Also there is some old (but not really frequently used) Kingston microSD 64GB card inside M1 microsd slot (using exfat system).
p.s. I can see in openmediavault that everything seems normal in system (temps & load average) and everything seemed normal before crash too.