Object don't show in game mode

Hi, i encouter a problem with some object wich doesnt show in the game mode. Im using a canvas which contain image . I use that image as a background for the game! The problem is that my 3d object doesn’t show in the game Mode, only in the scene mode. I’ve try many thing but nothing work , Can someone help me? Thanks!

I just fix this problem
Click on the Canvas , then in the canvas Component there is an option Render Mode . Chose “Screen Space - Camera”