Complete your theme setup by activating your license. This will grant full access to all features and customization options. There are two convenient methods to do so.
First Method : Envato Register
you should be Log into your ThemeForest/Envato account before hit the register now button
Second Method : Alternative of Register
This method base on Purchase code , To find it of a theme you purchased from ThemeForest, you can follow this steps:
Step 1 :
Log into your ThemeForest/Envato account.
Step 2 :
Navigate to the Downloads tab.
Step 3 :
Locate your Theme, and click the Download button.
Step 4 :
Click “License certificate & purchase code”.
Step 5 :
Open the file and copy the purchase code.