Mask Task

In this game an apocalypse had occurred and the air is toxic to breath, your task is to find more masks to survive but the toxic has also created evil monsters that will attack you . This game was made for winter melon jam, it's also my first game so I would love feedback and advice! Also the shooting mechanic worked before I uploaded it to itch.io and I don't know how to fix it so if you know how to fix it I would love to know.