iOS 18.3.1 Camera not working, stuck on Black screen

Hello,

I got a weird bug after upgrading to iOS 18.3.1 on my iPhone 15 Pro, nothing changed, and I did not drop the phone. Upon installation, I opened the camera and it was stuck on a black screen, not working, along with the flash not working as well.

I opened the settings and it says maybe the camera is not original even though I never repaired the phone or changed its parts. 

Something is off after iOS 18.3.1. My options are either a hard reset and trying my luck after restoring, which would cost me an iCloud upgrade to backup my data, or to pay for a service provider. Both costing money.

If anyone knows of this bug or could support, I would greatly appreciate it.