Hi Nazanin @Nazanin ,
Here is already something that is causing problems in the real Render:

The Ring_High is Hiden in the Viewport, but is stil beingl Rendered. And I am pretty sure that it’s not the only part 😉
And your Viewport Render in Rendered Mode doesn’t look black to me. Probably some miscommunication or translation issue.
Oh wait, you are talking about the View > Viewport Render Image. That doesn’t work with Cycles: