I recieve the following error: ‘Internal Zend error – Missing class information for in’ and the website does not work anymore
No panic. This has to do with ACP caching on your server. We are trying to investigate why this specific class is having trouble with the ACP caching. Untill a solution (by us or the PHP community) has been found we recommend disabling ACP caching for this file.
More info can be found at https://bugs.php.net/bug.php?id=59298