Apparently you have just copied the code without trying to apply it to the specificities of your project.
Event 10 you are setting your camera's position.
This action should rather be in event 46 when Scrolling is true.
Also, you need to set a "trigger" (which Zone is supposed to be to a certain point) to indicate you want the Scrolling to become false, and the camera to move to a certain position on screen.