Hi sams199,
We see what you are talking about in the photo you shared. There are two links that have some steps you can try and settings you can possibly change on the camera.
Take a look at these two articles:
- If the camera or flash on your iPhone, iPad, or iPod touch isn't working
- Change advanced camera settings on iPhone
If you are still seeing the line and greenish tint, we recommend reaching out to Apple Support by going to Get Support.
Take care!