title: FastCGI server error 500
body: <p>I have an Ubuntu virtual server where I host my php website with the newest version of Plesk 12 and PHP 5.5. Sometimes (I believe when I open pages quickly one after another), I get an Internal Server error message..</p>
  
  <p>When I refresh the page, the site is normal again immediatly, but sometimes the error message dissappears after about one minute later.</p>
  
  <p>this is what I get on the page:</p>
  
  <blockquote>
    <p>Internal Server Error 500.</p>
    
    <p>The server encountered an internal error or misconfiguration and was
    unable to complete your request.</p>
  </blockquote>
  
  <p>Error log:</p>
  
  <blockquote>
    <p>[fcgid:warn] [pid 26583] (104)Connection reset by peer: [client (ip
    address)] mod_fcgid: error reading data from FastCGI server, referer:
    (url here)</p>
    
    <p>[core:error] [pid 26583] [client (ip address)] End of script output
    before headers: index.php, referer: (same url here)</p>
  </blockquote>