title: Icingaweb2 on a Server doesn't start
body: <p>So, I installed Icingaweb2 on a Ubuntu 16.04 server, but when I type in the <code>IP/icingaweb2</code> I only get the message </p>
  
  <pre><code>&lt;?php
  /*! Icinga Web 2 | (c) 2014 Icinga Development Team | GPLv2+ */
  
  require_once '/usr/share/php/Icinga/Application/webrouter.php';
  </code></pre>
  
  <p>and not the Icingaweb2 Interface.</p>
  
  <p>Did I forget to configurate something? Please help.</p>