That particular DB table has to do with adding additional files to monitor and not excluding files, but that was a known minor bug that was fixed and a new BPS Pro zip file was uploaded to the ait-pro.com Secure Download area on 4-9-2014. The bug did not negatively affect anything and is just a nuisance bug that generates php errors. Download a new BPS Pro zip file from the ait-pro.com Secure Download area and use the BPS Pro built-in upload zip installer to install the bulletproof-security.zip file. The BPS Pro upload zip installer page is located under the Install / Backup menu link. This menu name/link has been changed in BPS Pro 9.0.
Or you can just ignore the php error and wait for BPS Pro 9.0 to be released (no ETA at this time for BPS Pro 9.0). The php error is tied into a ARQ Cron Failsafe shutdown function and an additional conditional check needed to be added.