@JohnFromGWN
Sorry for the delay in replying.
I was able to solve the problem successfully.
Thank you very much.

Even aircraft that do not need to put away their landing gear will crash if you get on and press the button to put away the landing gear.

The game crashes when I board an aircraft and put away the landing gear.
If I don't put away the landing gear, the game does not crash, but if I do, it crashes with certainty. How can I fix this?