Back Camera not working.

Hello aniyah257,

Thank you for posting in the Apple Support Communities. Being able to take photos is always important. I'm happy to see if I can offer some troubleshooting help for the issue you're experiencing with your back camera.

I recommend starting with the steps below, from the link titled If the camera or flash on your iPhone, iPad, or iPod touch isn't working:

"If the camera isn't working

1. Remove any case or film that might block the camera. A metallic or magnetic case or camera attachment might interfere with the camera on your device.
2. Test the camera by trying to take a photo. 
3. If the photo is blurry, clean the front and back camera lenses with a microfiber cloth. If you see dirt or debris inside the lens or if the camera lens appears to be misaligned or blocked, contact Apple Support for help with your iPhone, iPad, or iPod touch.
4. Restart your iPhone, iPad, or iPod touch. 
5. Test the camera again by taking a photo. If your device has a front and rear camera, check if one or both isn’t working. To switch cameras, tap the rotate button ."

If those steps don't help, I recommend using this link to reach Apple directly: Contact Apple Support

Have a great day.