button's are not working when I use Screen Space - Camera in canvas

I can see the button but I can’t click on it.

I just want the canvas to follow the camera.and in this case buttons are not working.
what should I do to fix it?

HAHAHA :slight_smile: it was another canvas with some buttons that they were covering all the screen and the because of that I couldn’t click on the button :smiley:

Screen Space - Overlay will work.
If not, do you have a Event system in your world?