I believe I already had you reinstall SW on your computer, but it looks as though some major files required to run the program are missing. Unfortunately, the best thing I can say for now, is redownload, and then reinstall, you may have corrupted files on download or something weird like that, otherwise, this is out of my league and I hope someone else has a better Idea on how to solve this problem.
In your case noa, Unfortunately I don't read German, so I'm not exactly sure what the error is that is happening and how I can provide an accurate answer.