Thank you for contacting Styled Themes support Team.
We are really sorry for the inconvenience caused, slider revolution is not available on .org plugin repository so you are getting such error. As this is premium plugin which is available here https://revolution.themepunch.com.
Let us know if have any question, we will be more than glad to assist you.
With our premium themes, we offer access to site documentation, video tutorials and timely support. Even if you have just started on WordPress, our support staff have the patience to help you create appealing sites gracefully.