Zend optimizer

[BliXem]

Hello,

i have installed Zend optimizer 3.0.1, but when i install Kayako ticket system, i get this error:

Fatal error: Unable to read 54817 bytes in /home/admin/domains/webruimtehosting.com/public_html/includes/functions.php on line 0

how to fix this?

OS : FreeBSD
PHP: 4

 

[DamnSkippy]

Why do you say this is related to Zend?

Is there a possible permissions problem?

Does the file actually exist?

Is it corrupted maybe?