Revoke the license Issue

I have setup theme now on new website and old one was deleted now the error shown me that( All Licenses are in use. You can use the license on only one domain, revoke the license from the Licenses page on our site to be able to use it on this site. ) I am unable to revoke it on from old website how i can use this license on new website

Get in touch with the author of the theme who should be able to help you.

Hi their kindly help me how i can contact with author