HASSOS-BOOT possible to restore?

I am running HA on RPi 4b with SSD. I tried to change /boot/config.txt on Ubuntu when the USB cable suddenly disconnected while the HASSOS-BOOT participation was mounted. And after that all attempts to open the config.txt file returns error input/output. Ubuntu’s Disks utility tried to restore the file but i got it with zero size.

I restored HA on a new SSD and copied the /boot/config.txt - no success: the HA is not booting. Looks like there is another issue with the boot partition. So at the moment I have one SSD with latest HA but corrupted HASSOS-BOOT partition; and another SSD with one month old HA but bootable.

How can I restore HASSOS-BOOT partition?