One question we get a lot at WebDevStudios is what to do when you receive the dreaded WordPress White Screen of Death. WordPress by default hides all error messages from displaying. This is for security reasons as error messages can actually help hackers penetrate your website.
So how do you display error messages in WordPress? Easy! Just add the line of code below to the top of your .htaccess file in the root directory of your WordPress website.
php_flag display_errors on
That’s it! Error messages will now display across your entire WordPress website.
Another method used to display WordPress error messages is the WP_DEBUG flag:
Just drop that line of code in your wp-config.php file and errors will start displaying.
Remember to only use these techniques to help troubleshoot errors and remove it as soon as you are done.