HUB - ERR_CONNECTION_RESET - WP Bakery Page Builder
If after activating WPBakery Page Builder, the site crashes and starts throwing "ERR_CONNECTION_RESET" please see the server error log.
This problem often happens in Windows because of smaller Apache’s default stack size. And it usually happens when working with php code that allocates a lot of stacks.
To solve this issue, add the following at the end of apache config file, httpd.conf