hard disk failure issue

Sir, We have purchased Draft sight standard version on 10.06.2020 through your site and we successfully installed and activate the same in our system. That system hard disk was failure so we have tried to install the draft sight with same key in another system but it's shown “the software is already installed in another pc and asked to uninstall the same ". We are unable to uninstall the software. Kindly help us this issue to resolve the same.