Hello, @sntbarboza,
1- Actually, you are using the third-party plugin for this purpose on your site, and that third-party plugin is not compatible with our theme and nor included in the third-party plugins compatible list confirmed from our end on the item’s main page, Please note that we do not give a guarantee for full theme compatibility with all existing 3rd party plugins. Sometimes, but not always, you need additionally customize the theme or plugin to make them work together. Unfortunately, it’s not possible for the author to make the theme compatible with all the existing plugins and additional customization is outside the scope of our basic support.
2- I have checked the sales booster on your site all the options you enabled from it are working fine on your site. I have recorded a video of each and every option you used in it and show you the result kindly watch the complete video: https://streamable.com/vdfew8
Regards 8Themes Team.