Zend Guard removal

I’m receiving the following message when trying to access FreePBX’s UI…

“This file was encoded by the Zend Guard.”

I accidentally installed this module, and now I suppose I need to remove this module via CLI. How can I go about doing so?

AsteriskNOW v.1.7

Please read thread http://www.freepbx.org/forum/freepbx/general-help/updated-tonight-and-get-zend-optimizer-screen and follow the instructions on the last post

Thank you sir!