title: Joomla any action in Article Manager showing a blank page
body: <p>I am facing a strange problem in Joomla Article Manager.</p>
  
  <p>Any action (add, edit,..) on the page is showing a blank page.
  For e.g if I click on "New" button it redirect the page to
  <code>administrator/index.php?option=com_content&amp;view=article&amp;layout=edit</code> which is completely a blank page. Any suggestion/idea?</p>
  
  <p>I have already tried to re-upload components/com_content, disable WYSIWYG Editor, etc. :(</p>