My wordpress admin page was looking weird for a while. I opened up the debug console and found out some of the css and js files didn’t load correctly. After doing some searches, I found the following fix from here.

Simply, in wp-config.php before the require_once lines add the following

define('CONCATENATE_SCRIPTS', false);

After that, your admin page will look all clean and normal! =)

wordpress_admin_css_error