Revolution Slider doesn't want to download with prebuilt website
I have tried to download Revolution Slider with prebuilt website option in Setup Wizard and later again in Betheme>Plugins>Revolution Slider>Install and it gives out. error pop up screen: "Invalid license code. Please make sure that your purchase code is used only on this domain. You can check it at: api.muffingroup.com/licenses" When I check given link it is visible it is only connected to one domain. How to fix this problem since Revolution slider is the only plugin from bundle that can not be installed?