iPhone 6 normal camera doesn't take photos, only the front one.

I have no idea why this happened. My phone is only 1 moth old and there were no bugs or troubles with it, but one day my camera just stopped working and it doesn't take picture. The front camera works just fine, but when I click the button to photograph with the normal one, nothing happens. But it takes videos, so I don't understand what is wrong. I tried restoring my phone, but it didn't help. I don't know if it's related, but my flashlight doesn't seem to work as well. Please help, cause it's a new phone and I never even dropped it. I thought one hot day I left in in the sun and it was kind of hot when I realised it, but could it have an impact on the camera only?