camera raw non funziona

What do you mean by Download Photos in RAW. Do you mean Copy them to the hard drive of whatever device you are using? If so then Adobe Camera RAW, or Lightroom, won't open when doing that.

You need to explain exactly what you are doing.

Before we can try to help we need more informations about your environment

Which operation system do you use?

Which Adobe application in which version do you work with?

Which camera model do you use?

Do you get an error message? If yes please post the exact error message.