Firstly, we are really Sorry for all the inconvenience that you had to face in this regard.
Regarding the Visual Composer plugin, the thing is actually after every Update of this Plugin, a compatibility issue arises with almost every Theme that’s why all the major Themes are discontinuing this Plugin and are moving to future-best Plugin (i.e. Elementor and WPBAKERY). We are also doing the same so that your Site doesn’t get distorted every time when the VC plugin update arises. That’s why we have removed the Plugin compatibility with the Theme and soon enough we will also remove the VC plugin from the Theme package and it will no more be supported too. So, we would kindly like to apologize to you first that you will have to go through this process but it would be a humble request to you that please move to Elementor or WPBAKERY page builder Plugin and import any of the Demo of your choice with these Page Builder plugins on a fresh new WP install so that you can avoid hassle-free environment in terms of Site Development. We know it would be difficult for you to start all over again but we want to assure you, it will be worth it.