Fatal error: This file has expired

[thedust2010]

I have a PHP application that uses Zend encoding. It worked a few months ago and now I get the following error:

Fatal error: This file has expired. in /home/httpd/vhosts/thisdomain.com/httpdocs/394odjba/locator/index.php on line 0

Anyone know what I can do??? I'm tearing my hair out over this...