Your purchase code is already activated

I have installed the theme but when importing a demo site got stuck at some point, so I have removed that instance (43.205.240.117) and created a new instance & installed the theme again but after inserting the license key I’m getting the below error

Your purchase code is already activated in 43.205.240.117, Please contact us for using this purchase code on another domain

Can you please detach the license key from the old IP (43.205.240.117) so I can use it in the new instance