I solved it! ;D Exactly that was the problem. Obviously the installation program copied the files only into the aircraft/plugin directory but not into the resources/plugin-folder. So I copied all the files into this folder and ... it works! Thanks for the great support to Javier and Philipp!
I think it has definitely to do with the plugin. 1.) I reinistelled the plane - crash 2.) I deinstalled C++ and reinstalled the new(clean) one - crash 3.) I removed all 3rd party plugin - crash 4.) I removed the vascore plugin - xplane startet but as I loaded the plane - crash Log.txt
Of course, I did the hardware test. It was sucessfull. Currently I'm trying to reinstall the plane. If it fails again, I'll take a look at the log.txt.
I guess, I'm the first customer who bought the product. I was very happy. But then came the disillusionment. After install I startet X-Plane... and crash to desktop. > > > I am not so happy now... >
Well, I've reached a point now where nothing can bother me anymore. It's out when it's out, tralalala... still waiting and smiling.... : No seriously, I think it's suspiciously silent. I guess no news are good news.