Here is my list of things to do when you get that Divi builder timeout error message,  or the spinning wheel and can’t update or load a module:

1. install the divi-disable-plugin-check
https://elegantmarketplace.com/downloads/fix-the-divi-builder-error/

2. add this to .htaccess

<IfModule mod_substitute.c>
SubstituteMaxLineLength 10M
</IfModule>

3. change php version – there are a couple of v7.x iterations so swapping can help

4. In cpanel php variables increase the memory_limit to 128M

5. If on Siteground and using the SG Optimizer, remove the SSL info from within .htaccess – I just roll back to the basic WordPress info.

NEW GLITCH! 24/11/2017
WOOCOMMERCE V3.2.4 CONFLICTS WITH DIVI

WooCommerce v3.2.4 causes a conflict with DIVI – when you go to edit a page, a product is loaded instead.

This has been fixed with WooCommerce v3.2.5

If the problem still exists, contact WooCommerce and ask for them to send you v 3.2.2 which is stable.  You can use this until you sort out the issue.

NEW GLITCH! 30/11/2017

DIVI 3.0.89 and WordPress 4.9.0 issues — DIVI support says it is very important to update DIVI theme first before you update WordPress core.

**TRY THIS – DIVI disable plugin check***

https://elegantmarketplace.com/downloads/fix-the-divi-builder-error/

This plugin fixes the issue where the Divi builder will not load due to a warning of plugin conflicts. Fully tested on all latest Divi installs that are affected by this issue. ** Does not currently work with MULTISITE installations.

I built this at the request of many in the Divi Theme Users group. A donation will help but it not mandatory and of course, if it doesn’t work for you, you will have to try something else.

Thanks for your support.

Licensing

There is no support on this item. It will either work or it won’t – If it does not work for you, please leave a comment so we may do our best to fix it for you.

Still not resolved? – Another place with good info to try

Apart from the fixes listed above, you can refer to the following page for more information:
https://elegantmarketplace.com/updating-and-managing-the-divi-theme-from-elegant-themes/