Crash at the end of dev kit's update = loss of all edited files?...8/

At the end of all updates there is a window (poping out) with a backup of my edited files;
Today the EPIC GAMES LAUNCHER crashed at the end before the window was avaible… how can I get to that backup? I cant find it in dev kit’s files.
Please help, Ive got a lot of my work to loose…

The backup should be in the \Epic Games\Launcher\Backup\ folder

yeah, there’s some backup but a different one than we get after the update; one mess of various files’ versions there… but thanks for replying