Recently, I ran into an issue with a Divi install I was running on a new server. For whatever reason, it suddenly wasn't loading any of the scripts necessary. I tried rolling back the theme, but that didn't do anything. I then tried re-installing Wordpress, but that didn't fix anything. A Google search led me to this article - https://wordpress.org/support/topic/failed-to-load-jquery-at-load-scripts-php/ Which led to this extremely quick fix: Try adding define('CONCATENATE_SCRIPTS', false); to your wp-config.php file just below the define('DB_HOST' line. After adding that to my wp-config file, everything worked as expected.
Developer Blog