Problem building drone simulators in Gazebo Simulator with SITL

hi
I’m trying to build a simulation on a gazebo that simulates a fixed-wing drone (zephyr) with a camera
Use the following:
ubuntu 20.04
ArduPilot
And follow the following to operate in video

During take off, the problem appears in the drone
I would be grateful for helping me
thanks
I attached a video explaining the problem
https://drive.google.com/file/d/13Cri7Rb8SiW0jcbNpVE7pwbg7PLMDyO9/view?usp=sharing