Hi matiasmangiaruga,
1. Please describe in more details, what you want to make changes?
2. You don’t need to active the plugins because you still can use them with our theme. It’s just the notification from the plugin’s author, you can ignore it and your site is still working great. As the most themes on ThemeForest have the same feature, you can see that with each purchase, we will integrate the plugins with the theme and you’ll use the plugin without paying any extra fee. We always update the plugins up-to-date to ensure the customers can use plugins with ease.
Regards,