Retry for a live version while using Divi Builder

While I use Divi builder it says 522 error and says retry for a live version. And also, after setup Cloudflare my website becomes slow. What should I do?

Though it says host error, after removing Cloudflare account it becomes normal.

Here are some suggestions regarding 522 errors.

I have contacted with my hosting provider, they make a solution Error 522 connection timed out for host error but I don’t know why the latest version of Divi theme builder doesn’t work properly but the old version of Divi theme builder works fine. It reloads all time and says to reload the builder. But one of my another website works fine with the latest Divi theme builder.