title: MODx parser object is NULL
body: <p><strong>Fatal error: Call to a member function parseProperties() on a non-object in htdocs\core\model\modx\modelement.class.php on line 536</strong></p>
  
  <p>Please help me fix this error, i tried on my own but failed. I am trying to run an existing project. I am completely new to MODx.</p>