Want change Wp theme doamin

I purchased a Theme for WordPress and now it is activated on the domain the issue is I want to change my domain can I Delete the first website and Create a new website using the old license?

Yes you can try this way but before of that highly recommend you for contact with Theme Author.

Please check this page ; https://help.market.envato.com/hc/en-us/articles/203039054-How-to-contact-an-author