Postfix Error - Obfuscated argument TagsWorker

Hi, hoping someone can help me out. I am coming across a problem with emails on our CWP server and can find nothing on the subject anywhere..

On the server I am getting an error message cropping up as such:

Warning: [obfuscated](): Requires argument 2, 'TagsWorker', to be a valid callback in /usr/local/cwpsrv/htdocs/resources/admin/addons/mail_explorer_addon.php on line 0

I have looked in the file and nothing stands out as a problem. I can not find anything related to 'TagsWorker either. Can anyone suggest what is going on and how to fix this? Thanks!!

you can use this link to contact support for checking it
http://centos-webpanel.com/contact