Double check that your actual website domain name is correct in this line of hotlink protection code.
SetEnvIfNoCase Referer "^(http|https)://www\.mysite\.com.*$" whitelist
Double check that you have done all of the BPS Custom Code steps to actually add/create this new code change/modification in your root .htaccess file.
http://forum.ait-pro.com/forums/topic/hotlink-protection-do-not-block-google-bing-or-yahoo/