NOTE: This article refers to the act of saving a flight plan to the flight plan catalog in the G1000 or GNS software. This article is not related to entering a live flight plan into flight plan page 0.
Make sure than in your “My Documents” folder you have a folder exactly named “Flight Simulator X Files” , "Prepar3D Files", “Prepar3D V2 Files”, "Prepar3D V3 Files". Flight sim is supposed to put that folder there, but if it’s missing, it could cause this problem. .
In summary if the folder relevant to your version of flight simulator is missing, it will cause a crash when you try to save a flight plan to the flight plan catalog in the G1000 or GNS software. The English folder names are:
Flight Simulator X Files
Prepar3D V2 Files
Prepar3D V3 Files
Flight Simulator Files
Note for customers with non-English versions of Windows: When FSX or Prepar3D creates these folders, they may sometimes be named in your national language instead of English. Prior to April 2016, our software required the folder to be spelled using the US English spelling. But after April 2016, our software properly interprets the non-English versions of these folder names properly, as long as they are the folder names that FSX or Prepar3D created.