If running Apache 2.4, Bot blocking may not seemingly be happening. In the .hatccess file please remove the following line to restore bot blocking.
ErrorDocument 403 /BotBanish_AccessError.php
This line causes the bots to be sent through the BotBanish system when an Error 403 "forbidden" code happens.
This behavior will be corrected in BotBanish 3.5.03.