I have never seen this error before so I assume the upgrade failed. Use the BPS Pro built-in Upload Zip Installer to reinstall BPS Pro. Did you upgrade BPS Pro by clicking the BPS Pro update now link on the WordPress Plugins page or did you update BPS Pro some other way?
http://forum.ait-pro.com/forums/topic/bulletproof-security-pro-bps-pro-upgrade-installation-methods/
Upgrading an existing BulletProof Security Pro Installation (Using the BPS Pro Built-in Upload Zip Installer)
Download the bulletproof-security.zip file from the AITpro.com Secure Download Area. Under the BPS Pro Setup Main menu, click the Upload Zip Install submenu link. Click the Choose File button, navigate to where you downloaded the bulletproof-security.zip file on your computer (Note: the zip file MUST be named bulletproof-security.zip), click the Upload Zip File button and click the Install Zip Now button.
- This reply was modified 8 hours, 48 minutes ago by AITpro Admin.