looks like you had an older copy of the webassist/security_assist/helper_php.php file on the server.
i updated that to the latest version to fix the issue.
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.