title: PhpStorm Xdebug interrupts after a while with 500 Internal Server Error
body: <p>I'm new to PhpStorm. I tried to use debugging for debuggin a Webpage and I configured it 
  After starting the debugger, it works for 40 seconds and then  I get on the browser "500 Internal Server Error"</p>
  
  <p>At this question <a href="https://stackoverflow.com/questions/18579929/xdebug-interrupts-the-running-of-php-script">Xdebug interrupts the running of PHP script</a> they suggested to clear the watches. But in my Debugger there are no watches.
  I use the PhpStorm with Ubuntu 14.04 and the web page is running on Apache</p>
  
  <p>I used Eclipse before and I did not had this problem with XDebug.</p>
  
  <p>Do someone has an idea?</p>