Do I have to get another license for the root domain?

Graceful day,

I bought your amazing plugin woocommerce multicurrency for my soon to be launched online school web app > dreamadvantage.app

I have successfully installed it on the subdomain> https://courses.dreamadvantage.app/

I want to know if i can also have it installed on the root domin > https://dreamadvantage.app/

Or do I have to get another license for the root domain?

Thank you for your attention,

Adah Paul Samson