Is it possible that this is problem with update?
I solved my problem with backing up my data, installed Armbian_20.05.2_Orangepizero_bionic_current_5.4.43-sunxi.
I did update, upgrade and it falls apart.
Swap is zero, cpufreq does not work, invalid ELF structures.
Is it possible that update to 5.15.25-sunxi caused this? At first I thought that it was because of power off. My system works whole week and with crontab I restart it once a week in sunday after midnight. So, maybe I did update and upgrade before, but did not reboot it, so I was not aware that it could be because of update and thought that it is because of electricity power off.