Hello,
Thank you very much for choosing our theme and for contacting us.
Please make sure you run the recent Slider Revolution version. You do not need to purchase the slider.
WPBakery Page Builder and Revolution slider come bundled with our theme but they can’t be activated with our purchase code. Actually, you don’t need to do this. Only in case you want to get free premium support from its author, you can purchase it from Codecanyon. But it is not necessary since we will always provide you with the latest updates.
If you see your Slider requires the update,
You can update the plugin in Appearance > Install plugins or you can upload and install via Dashboard > Plugins or FTP.
1. Make the full backup of your site.
2. Deactivate and delete the current version.
3. Upload the new version from your portfolio on this forum.
4. Upload and install.
Best Regards