Problem: WordPress admin pages get a  “500 Internal Server Error”

Why? PHP is running out of memory.

Solution: If you are running your own root, dedicated or virtual server this is an easy bugfix: You just have to change the php.ini of your server and provide more memory to your PHP installation. On a shared hosting server – like 1and1 you don’t have access to that central php.ini. But there is an easy workaround:

Create a text file and name it “php.ini” (without the quotes ) and with a single line of code in it:

memory=20M

This file has to be placed into the directory /wp-admin/ within your WordPress installation.

Enjoy !