Critical error on my website

Developers
1

Hi there. I’m getting a critical error on my website, which is solved by deactivating BeaverBuilder, but that would not be a solution.

Any idea what would cause this?
FYI this is the site link: https://booking.yaalmozhipainting.in/

2

You need to update your theme, the version you have installed does not support BB 2.6 and later. Your theme vendor provided a fix last year for this issue.