camera

A message about a non-genuine part is discussed in this support document: iPhone parts and service history - Apple Support

An Unknown Part message appears if the part installation is incomplete or if the part:

Was replaced with a nongenuine part

Was already used or installed in another iPhone

Isn't functioning as expected

See this document about Genuine iPhone cameras --> About genuine iPhone cameras - Apple Support

did you get your phone fixed by a third party? they may have used a part not made by apple.