Background color not showing up in mobile after WPBakery plugin is upgraded to the latest version
issue is because the older visual composer (now WPBakery Page Builder) is
modified by the theme author by customizing the existing elements and adding
the new one's. Now when you update it, the customization made by the theme
author is lost which causes the issue. You can check it with the theme author
if there is any way to preserve the customization done by him with the latest
version, so that such an issue can be avoided at your end."



Comments
Also, we cannot recommend any plugins other than the ones we support. You can find the list on this page, in the sidebar:
https://themeforest.net/item/betheme-responsive-multipurpose-wordpress-theme/7758048
thanks