title: wp-admin shows blank page, how to fix it?
body: <p>I am working with WordPress 3.5.8. Yesterday I made some changes into it to a friend. I don't know what happened, but after some time when I try to log in at wp-admin side and execute URL <code>www.mysite.com/wp-admin</code> it shows me a blank page. How do I solve this? I have searched over the internet and blogs. I found it could be related to hosting problems or brute force-attack, but I don't think that that's what happened to my site.</p>
  
  <p>Links I visited:</p>
  
  <ul>
  <li><a href="http://wordpress.org/support/topic/wp-admin-wont-load-shows-blank-page" rel="noreferrer">http://wordpress.org/support/topic/wp-admin-wont-load-shows-blank-page</a></li>
  <li><a href="http://wordpress.org/support/topic/brute-force-attacks-and-wordpress?replies=1" rel="noreferrer">http://wordpress.org/support/topic/brute-force-attacks-and-wordpress?replies=1</a></li>
  <li><a href="http://wordpress.org/support/topic/wp-admin-wont-load-shows-blank-page" rel="noreferrer">http://wordpress.org/support/topic/wp-admin-wont-load-shows-blank-page</a></li>
  <li><a href="http://wordpress.org/support/topic/wp-admin-blank-page" rel="noreferrer">http://wordpress.org/support/topic/wp-admin-blank-page</a></li>
  <li><a href="http://wordpress.org/support/topic/blank-page-on-wp-admin" rel="noreferrer">http://wordpress.org/support/topic/blank-page-on-wp-admin</a></li>
  </ul>