Unable to use CFS Passphrase - Getting 404 Error

When trying to use the passphrase/confirm feature in CFS, getting the following error:

404: Page Not Found. We Can't Find That Page. The Site has returned a 404 error.

SCREENSHOT of the issue:  

•  Navigate to Policy | DPI-SSL | Client SSL | Common Name and search for .sonicwall.com. Remove this entry.
• Please confirm the change.
  
• You can now use CFS Passphrase/Confirm without any issues.