So, what is the White Screen of Death when working in WordPress. I don’t know. I just know that it happens every once in a while, and it’s frustrating, as it causes a ton of issues. It’s an easy fix, unfortunately it’s such an easy fix that I often forget how to fix it until I have over-troubleshot the situation. The other day, on this one WordPress site, every time I clicked on Updates in the WordPress Admin area, it would produce a White Screen of Death. To fix the WordPress White Screen of Death, or depending on the browser, it may give you just a server error page with little to no information, try the following.
The first thing that you should check right from the start, which has been the source of my issues with this more than 95% of the time… check to see if there is any white space in the WordPress functions.php file. It’s stupid but true. If there is any white space after the last entry in the file, or blank carriage returns, delete them, save the file and re-check your WordPress installation. I bet the problem goes away.
If that doesn’t fix the problem, chances are it’s a plugin that probably has the same issue in an important PHP file. You can rename the plugins folder to bypass all plugins to verify that.
Obviously the theme can have more files that have white space so check them as well if necessary. It’s a pain, but these simple steps should correct your WordPress White Screen of Death.