Hi again!
It looks like you have some old tables from a previous version of Wordfence.
I wrote a query for you to clean up your database:
SET foreign_key_checks = 0;
DROP TABLE IF EXISTS qbc_wfBlocks, qbc_wfBlocksAdv, qbc_wfLockedOut, qbc_wfThrottleLog, qbc_wfNet404s, qbc_wfBlockedCommentLog, qbc_wfVulnScanners, qbc_wfBadLeechers, qbc_wfScanners;
SET foreign_key_checks = 1;
If you’d prefer to manually delete these tables, this is the list of tables you can safely delete (Wordfence no longer uses them in the latest version):
qbc_wfBlocks
qbc_wfBlocksAdv
qbc_wfLockedOut
qbc_wfThrottleLog
qbc_wfNet404s
qbc_wfBlockedCommentLog
qbc_wfVulnScanners
qbc_wfBadLeechers
qbc_wfScanners
Dave