Buttons problem

Hi everyone, i put some buttons in my game and some images with the new UI system. I used these buttons for my ‘pause’ screen of the game (i used a canvas for it that appeares on the ‘game’ canvas), but the problem is that the buttons of the pause canvas seem to collide with the images of the ‘game’ canvas and don’t work. Do you have any idea? Thank you very much.

See if there is a Sprite Layer you can change for it

Okay, thank you very much !