Cessna Citation Longitude aka The Most Broken Aircraft On Xbox

I get continuous “Landing Gear” warning during takeoff, right after I retract the landing gear. I’m sure it shouldn’t be like this, most of the climb I hear “Landing gear, landing gear…”. The same applies to descent: whenever the throttle is idle, the landing gear warning just doesn’t shut up, no matter the altitude.

How on Earth should this plane be flown?