How to install my license on the theme FORTUNA

I bought the regular license with one year support on the https://themeforest.net platform.

I need to know how to install the license I bought in the FORTUNA theme.
In addition I have bought the paid version of WPBAKERY and its technical support tells me that the FORTUNA theme is disabling the use of this plugin.

I am looking forward to your response.
Thank you