Your AntiVirus is causing Password protected compressed file errors
Troubleshooting Password Protected Compressed File Errors
The 'Password protected compressed file' error indicates the scanning engine encountered a compressed file that requires a password to access. You can elect to have these files blocked or passed though unscanned.
You may also see this error when scanning certain installer files because a file within the installer might be password protected and only the installer knows the password.
To change the behavior when this error occurs please connect to the ProxyAV management console - Antivirus - Scanning Behavior page.
Note: This error does not apply to Panda.