I got a problem with those charts, which you are displaying on your demo site. They doesnt even show up, if i want to see a preview und and they also didnt show up in the theme section "Unlimited Charts".
The next problem is the WPBakey Page Builder. This theme only included the 5.7 version, but they always notice me with the 6.0.3 version.
I dont know if that would solve those problems with these charts, but if you got any other solutions i would be very thankful.
You can try to update to new plugin version then check again:
I have installed the new version and it still doesnt work.
Can you provide your site url with an admin account so i can access to help you check it?
Thank for your information.
I have fixed the problem for you. You can access to check the page again.