softwareninjade

Same here, failed for SendGrid for me.

Just grab the previous version from here and install it until a fixed version has been released.

Quick update from my side: my issue has been resolved by applying the fix I see in your commit.

Great job, thanks, Timmy! ??

I see the (almost) exact same thing happening after updating to 3.6.0:
1. Logged-in user: click on “add to cart” works
2. Anonymous user: click on “add to cart” yields a blank page
2.1. Repeating “add to cart” as an anonymous user still yields a blank page

When activating WP_DEBUG I see this in the debug.log:
PHP Fatal error: Call to a member function get() on null in /var/www/mysite.com/htdocs/wp-includes/cache.php on line 123

I tried turning off plugins I suspected of causing trouble – to no avail.

EDIT:
I switched off + deleted caching (wp-super-cache) and that AJAX add to cart option as this was my prime suspect. Didn’t help.

• This reply was modified 5 years, 7 months ago by softwareninjade. Reason: Added info on turning off caching
• This reply was modified 5 years, 7 months ago by softwareninjade. Reason: AJAX add to cart option also turned off