since last week I have the problem, that the MSFS freeze after start a flight
This message is coming up
“Simulator.exe has stopped working
The program is not running properly due to a problem,
The program will close and you will be notified when a solution is available”
CLOSE
Is there any idea what could create this problem?
Moved to Tech Talk which is more appropriate whilst others help you troubleshoot 
could be a number of factors the most common culprit is an addon in the community folder, rename it to communityx and let MSFS Build a new folder on startup, i too had this issue but it was right after coming off the cinematic screen it was fixed by switching my yoke binding profile to default. might want to give that a try.
Thanks I will try this oder the next days.