WPBakery 6.6.0 Not working with Highend Theme

Hello HB-Themes,
Last week I got an alert on my site to update my Highend theme as well as WPBakery (to 6.6.0). Once I did that, I noticed that some of my pages are suddenly blank. For example, please see https://thepeel.news homepage. I thought everything is wiped out, but noticed that at the backend of the page, all the elements, images, texts, sliders, animations, etc., are ALL present.

So I emailed WPBakery about this. I have copied and pasted their response is in the quotations here:
“The 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.”

My Highend theme code is 5d9f46d5-18a4-4590-b028-7fcb0a14153a, and really appreciate your help. As you can see, my site is pretty much dysfunctional.

Thank you so much in advance,

Adel Aali
adelaali@yahoo.com