Thanks god for the backups. Map loading OK, mission loading...error, no units. Previous backup file was OK, thus I mixed the last map with previous mission. There were no mission changes between these two files, thus I lost NOTHING and I can go on. Ufff.
For now I have 28 backup files. Here you can see, how it could happened. I everything will be OK, I will try to release first beta as a Christmas gift. However still much work is needed.