in your wp-config.php you will find a line that reads (most likely) like this:
REPLACE this with (or if it does not exist simply add the below)
define('WP_DEBUG', true); define('WP_DEBUG_LOG', true); define('WP_DEBUG_DISPLAY', false);/*this should NEVER be true for production sites*/
Note: this MUST be before
/* That's all, stop editing! Happy blogging. */
Which will generate a file “wp-content/debug.log” if and when any errors are encountered.
Check this file for errors if you need to find out where things might go wrong
documentor id 7