I regularly get that report...!
It brightens my day up...

...1
Sometimes it's due to some dodgy aircraft/gauges/scenery/etc which I have downloaded....
..or..
...even something as simple as making a selection in the menu while the program is still running...

...!
(Like selecting a different aircraft from my hangar).
I don't know why it is...I just say "Bugger"...and the flight automatically starts all over again..

...!
Cheers...!
Paul...never a dull moment...

...!
Win 8.1 64-bit. DX11. Advent Tower. Intel i7-3770 3.9 GHz 8-core. 8 GB System RAM. AMD Radeon HD 7700 1GB RAM. DVD ROM. 2 Terra Byte SATA Hard Drive. Philips 17" LCD Monitor. Saitek Cyborg X Fly-5 Joystick. ...and a Briggs and Stratton Petrol Lawn Mower.