Couatl (GSX PRO) make the sim crash?

According to my Eventanzeige in Win10 there is a problem with Couatl64 which came with GSX PRO. That made the sim crash in the middle of a flight. It also said there is an error within this path: C:\WINDOWS\SYSTEM32\ntdll.dll
So GSX PRO is not only causing trouble itself but it also crashes the whole sim?

Yeah it was the PMDG 737-600. But my hardware should handle it.
Ryzen 7 7800X3D, RTX4070TI, 64GB DDR5 RAM