Hey Kummitus!
Just downloaded and reinstalled FH2 (from http://forgottenhope.warumdarum.de/) in a clear install of windows and again, I have the same problem
My FH2 launcher is version 1.24.0.0 and there is nothing I can do to update it further, even when I click on the launcher itself to update...
I also noted the "date created" for my launcher is from 2019, even though it was downloaded directly from the official website...
Peace!