My Instax Mini 9 won't take a picture.

Okay, it's been like a couple months since I've used my Polaroid. I have a fujifilm instax mini 9, and I only had abt 4 films left. So one day I decided to use it, but when i tried to take a picture, it didn't want to capture the image?? the next day I took out the old film, changed the batteries, and finally bought new film for my camera. When I placed in the new one, I tried to snap a pic for the black film to come out, turns out it still doesn't wanna snap? I've tried everything, new batteries, cleaning my camera, yet it still doesn't want to work. I'm really scared that it's broken, and this thing costs a lot