That is very interesting. I am myself on the latest version of windows (I just reinstalled today). (Windows 10)
And i am not having any issues. I haven't got the report from anyone else either.
Don't fret we'll figure this out.
Now your error is in german, but my guess is that it's saying something about namespaces.
Sounds like it doesn't have all the DLL files it's supposed to.
Maybe your windows update, replaced some of the files that you need for wrobot to run fine.
I know that you are not having any issues with other fightclasses, but i will remind you once more. My fightclasses are VERY much more advanced than most fightclasses here on the forum. I might be utilizing a lot more than most others are.
Can you try and go through this: https://wrobot.eu/forums/topic/1381-repairinstall-wrobot/ ?
Hopefully whatever files you are missing on your pc after the update will be reinstalled. ?
Now don't just reinstall wrobot. Go through ALL the steps please. ?