@vahost: Did you mean delete the /wp-super-cache/ folder, or were you thinking that WP-SpamShield was having an issue with your WP Super Cache install? If the latter, I’ll be happy to help with that.
@summergs1,ymarkable,sarahp13,ecdltf,vahost: Whenever you get a white screen in WordPress, the best way to diagnose it is to turn on WP_DEBUG. It’s a debugging mode built into WordPress, and is very useful tool when you have a situation like this come up. It will tell you where there are code errors, and help if you have plugin conflicts. To use WP_DEBUG, do the following:
First back up your wp-config.php file in your WordPress directory, then open it up:
Look for the line that says define('WP_DEBUG', false); and replace it with:
// Turns WordPress debugging on
define('WP_DEBUG', TRUE);
// Tells WordPress to log everything to the /wp-content/debug.log file
define('WP_DEBUG_LOG', TRUE);
// Doesn't force the PHP 'display_errors' variable to be on
define('WP_DEBUG_DISPLAY', FALSE);
// Hides errors from being displayed on-screen
@ini_set('display_errors', 0);
(When you’re done debugging, just switch it back.) Most people only know about the first line define('WP_DEBUG', TRUE);, but that would turn on visible error display in your site, which is not desirable for a production site, as you can imagine. Adding the next few lines writes it to a log file instead, so it’s a very clean way to use WP_DEBUG. (Feel free to use this again in the future when you need to debug your site.)
Then and recreate the error. Information will be logged to /wp-content/debug.log.
In the debug.log file, you will usually see the exact reason you got the white screen.
Some of most common reasons for white screens in WordPress are: undiagnosed PHP errors, memory issues, database issues, and old PHP versions.
Hope that helps!
