Issue With Wp Builder

HI
I am very new to WordPress and I am comfortable with wp builder, today when I was practising with wp builder with the new theme I figure it out that Wp-Builder backend is not working only i can See is a classic editor.

As wp-builder Backend showing at the bottom, but it’s not Updating I am sharing the screenshot of site To understand better.

It will be appreciated if you can help me as I am very new in this.

The page I need help with: [log in to see the link]