@Joystiff
You uninstall PVA and then visit the following address to download and reinstall.
http://www.whitehatbox.com/SoftwareUpdate/Download/a02d6097-367d-4e7e-a608-be0f26e7269b.zip
If it still cannot work, you can contact us via the following address.
https://support.whitehatbox.com/